You are a new manager at the American branch of your German firm in Chicago. With a few minutes to spare between meetings, you go to get a quick cup of coffee.

    “Hey, David, how are you?” one of the senior partners at the firm asks you.

    “Good, thank you, Dr. Greer,” you reply. You've really been wanting to make a connection with the senior leadership at the firm, and this seems like a great opportunity. But as you start to think of something to say, your American colleague breaks in to steal your spotlight.

    “So Arnold”, your colleague says to your boss, in such a casual manner that it makes your German soul cringe(畏缩), “So what's your Super bowl prediction? I mean, you're a Niners fan, right?”

    The conversation moves on, and you walk silently back to your desk with your coffee. You know how important small talk is in the U.S., and you feel jealous of people who can do it well.

    There's nothing small about the role that small talk plays in American professional culture. People from other countries are often surprised at how important small talk is in the U.S. and how naturally and comfortably people seem to do it — with peers, men, women, and even with superiors. You can be the most technically skilled worker in the world, but your ability to progress in your job in the United States is highly dependent on your ability to build and maintain positive relationships with people at work. And guess what skill is critical for building and maintaining these relationships? Small talk.

    What can you do if you are from another culture and want to learn to use small talk in the U.S. to build relationships and establish trust? Work hard to hone(磨练) your own version of American-style small talk. Watch how others do it. You don't have to mimic what they do; in fact, that would likely backfire because people would see you as inauthentic. But if you can develop your own personal version, that can go a long way toward making you feel comfortable and competence．

    Some people will do just about anything to save money. And I am one of them. Take my family's last vacation. It was my six-year-old son's winter break from school, and we were heading home from Fort Lauderdale after a week long trip. The flight was overbooked, and Delta, the airline, offered us $400 per person in credits to give up our seats and leave the next day. I had meetings in New York. So I had to get back. But that didn't mean my husband and my son couldn't stay. I took my nine-month-old and took off for home.

    The next day, my husband and son were offered more credits to take an even later flight. Yes, I encouraged—okay, ordered—them to wait at the airport, to “earn” more Delta Dollars. Our total take: $1,600. Not bad, huh?

    Now some people may think I'm a bad mother and not such a great wife either. But as a big-time bargain hunter, I know the value of a dollar. And these days, a good deal is something few of us can afford to pass up.

    I've made a living looking for the best deals and exposing (揭露) the worst tricks. I have been the consumer reporter of NBC's Today show for over a decade. I have written a couple of books including one titled Tricks of the Trade: A Consumer Survival Guide. And I really do what I believe in.

    I tell you this because there is no shame in getting your money's worth, I'm also tightfisted when it comes to shoes, clothes for my children, and expensive restaurants. But I wouldn't hesitate to spend on a good haircut. It keeps its shape longer, and it's the first thing people notice. And I will also spend on a classic piece of furniture. Quality lasts.

    If you're encouraged by the tiny house movement and think 160 square feet is just enough for your needs, you may want to contact the Academy of Construction and Design (ACAD) at IDEA Public Charter School in northeast Washington．

    Students in the program built a micro house with a kitchen, a bathroom, a sleeping loft with space for a queen-size bed and a storage loft, all set on a trailer for mobility. The exterior (外部) of the house was part of a continuous living exhibit in 2015and was moved to the IDEA campus so students could work with builders to complete the interior earlier this year.

    McMahon said the D.C. government's approval to push companies to hire District residents (居民) was at odds with the school system not preparing students for careers in construction, exploring or electrical work. McMahon gathered industry and community leaders to establish ACAD in 2005 and he said 100 percent of the companies he contacted responded positively to the idea, including major firms such as JBG, Clark Construction, Hines Construction and Boston Properties.

    “When students make the connection between what they are learning a potential career, their academics improve dramatically,” said Carol Randolph, chief operating officer of the D.C. Students Construction Trades Foundation. “Some of them who didn't think college was an choice now have a better chance because their classes have become relevant to a job.”

    “We teach them life skills and explain that even if you start as a laborer, there are opportunities to move up quickly,” he said. “We rewrite the story for them and explain that they can work for a few years, make good money, get promoted, and start their own business or go to school with less debts.”

    “Parents and school advisors can be the biggest obstacles because of the negative idea of construction as a blue-collar career,” Karriem said. “I get middle-school advisors on board to talk about the opportunities this education provides. These kids are learning lifelong skills that can help them in other fields, provide them with income and allow them to take care of their homes.”

    If you use social media to chase away loneliness, a new study suggests you're going against the grain.

    We may have heard a lot about the benefits of interacting with others online, but the findings of a study conducted by University of Pittsburgh School of Medicine scientists show a direct relationship between social media usage and feelings of isolation (隔绝). In short, the more time you spend on social media, the lonelier you may feel.

    With increased interaction on a large number of apps that allow for endless virtual connectivity, loneliness seems like the last problem frequent social media users would face, but according to the leader of the study Brain Primack, it has the exact opposite effect.

    "Mental health problems and social isolation are at widespread levels among young adults nowadays," Primack said, "We are naturally social creature, but modem life tends to separate us instead of bringing us together. While it may seem that social media presents opportunities to fill the social void (空隙), I think this study suggests that it may not be the solution people were hoping for."

    Primack and his team examined the social media habits of 1,787 U.S. adults aged 19 to 32 via a questionnaire that asked about the time and frequency they spent on the most popular social media platforms. Eventually, they determined that young adults who are constantly logging into social media reported more feelings of isolation than those with less social media usage. Frequent exposure to unrealistic descriptions on social media instead of face-to-face social interactions may give people the impression that others are living happier, more connected lives, and this may users feel more socially isolated in comparison.

    Nowadays six Amazon Scout delivery robots rolled out in a pilot program in Snohomish County, Wash. The robots carry meals, groceries and packages to homes and offices in this region just north of Seattle. They have appeared on the sidewalks of London, Beijing and other cities and communities worldwide. These machines must overcome pedestrian legs, naughty dogs and broken pavement, which raises some questions.

    These services are gaining attraction as a growing number of city residents expect immediate or scheduled delivery for just about everything. Between 2017 and 2018 online retail sales in the U.S. increased by 16 percent. On the final step of all these deliveries, called the last mile, humans on bicycles, motorized scooters (电动车) or large delivery trucks typically deliver packages. All the vehicles compete for space on busy urban streets. "Deliveries are trending upwards in all crowded city centers, and if city and state leaders don't start thinking about creative solutions like robot deliveries, we can expect even worse traffic jams," says Paul Mackie, director of a transportation policy research center in Arlington.

    A study by this center found 73 percent of delivery vehicles in Arlington were parked outside of authorized areas, often blocking bike lanes and crosswalks. By moving the last step of deliveries from the road to the sidewalk, cities could reduce traffic jams and solve the parking problem entirely, Mackie says.

    Companies such as Amazon are not developing this delivery technology simply to clear up urban traffic. Self-driving vehicles and sidewalk robots could cut down last-mile delivery costs in cities by as much as 40 percent, according to a 2018 report by a consultancy firm. A delivery robot can cost thousands of dollars to manufacture, and most currently require human management and conservation. But in the long run companies that use autonomous delivery vehicles in the next several years could end up saving billions of dollars, the report stated.

    In the western Los Angeles sits the famous city of Hollywood, known as the global center of movie studios and film stars.

    The Selig Film Manufacturing Company was the first major film company to come to Hollywood, shooting its first film entitled The Heart of A Race Tout in 1908. The next year the film company built the first permanent film studio.

    Although electric lights existed at that time, none were powerful enough to adequately expose film. The best source of illumination for movie production was nature sunlight. Besides the sunny weather, film producers were also drawn to Hollywood because of its open spaces and wide variety of natural scenery.

    Another reason was the distance of Southern California from New Jersey, which made it more difficult for Thomas Edison to enforce his film patents. At that time, Edison owned almost all the patents relevant to film production. As a result, in the East, movie producers acting independently out of Edison's Motion Picture Patents Company were often accused by Edison. But in Los Angeles, things were different. If he sent his men to California, word would usually reach Los Angeles before they did and the movie makers could escape to nearby Mexico.

    In 1911, a second movie studio—Nestor Studios, was founded. At about the same time, many film production companies from New York and New Jersey started moving to sunny California because of the good weather.

    The first Academy Awards presentation ceremony took place in 1929 in the Hollywood Roosevelt Hotel. Tickets were $10 and there were 250 people attending the ceremony.

    From about 1930, five major "Hollywood" movie studios in Hollywood, Paramount, RKO, 20th Century Fox, Metro-Goldwyn-Mayer and Warner Bros, owned almost all large theatres throughout the country for the exhibition of their movies. The period between the years 1927 to 1984 was considered the "Golden Age of Hollywood".