Hundreds of years ago, Charles Darwin predicted that facial expressions of emotion are {#blank#}1{#/blank#}. If you've ever seen an episode of the popular US TV drama Lie To Me, you will really understand facial expressions. The leading actor of the show, Dr. Cal Lightman has spent 20 years studying nonverbal communication and facial expressions, which allows him to point out other people's studying nonverbal communication and facial expressions which allows him to point out other people's {#blank#}2{#/blank#} and on many occasions, to be skilled at tricking in order to get the truth.

    Is there really much truth behind this science of {#blank#}3{#/blank#} human emotions through expressions? Paul Ekman, a(n) {#blank#}4{#/blank#} psychologist whose work focuses on mapping facial expressions, is Lie To Me's scientific advisor and the following are some of his explanations.

    Hand-to-face gesture indicates a lie.

    Each micro-expression is unique to {#blank#}5{#/blank#} specific emotions because the person is often unaware of doing it. But it doesn't necessarily mean that they are lying when someone uses a hand to hide part of his face. The person could be holding back information but you may better consider looking at other more important clues rather than just the simple hand-to-face gesture.

    A liar refuses eye contact.

    People look away when they are thinking carefully and considering each word before it is spoken, not just when they are {#blank#}6{#/blank#} an excuse. Oblique eyebrows are a very reliable {#blank#}7{#/blank#} of sadness and few people can make this {#blank#}8{#/blank#} expression, so it is actually never faked.

    Guilty knowledge technique is {#blank#}9{#/blank#}.

    Lightman often uses the guilty knowledge technique, mentioning something that only the guilty person will know about and show a(n) {#blank#}10{#/blank#}. This is often used in polygraph exams: "Was the person strangled, shot or stabbed to death?" Only the killer knows and is likely to respond physiologically when the actual weapon is mentioned.

    Thank you for choosing me as the best{#blank#}1{#/blank#}. In our school, I'm really happy to share with you how passionate I am about sports and what I do to{#blank#}2{#/blank#}. I'm a big{#blank#}3{#/blank#}of many sports, including basketball, football and gymnastics. I love to watch these events on TV at the weekend. I also{#blank#}4{#/blank#}regularly, too. In the morning. I often {#blank#}5{#/blank#}on the running{#blank#}6{#/blank#}for about half an hour. I don't run too fast or for too long so that I have enough{#blank#}7{#/blank#}for the day. In the afternoon, I usually play football or basketball. I'm on the school football team. The training is always {#blank#}8{#/blank#}, but we all do our best, since we all want to{#blank#}9{#/blank#}on the team when playing against other schools. Believe it or not, we also occasionally do yoga in the{#blank#}10{#/blank#}! It helps relax our muscles and focus our minds. If you want to become fit and healthy, my advice is to try different sports and activities to see which one you enjoy the most.