WeChat {#blank#}1{#/blank#} 

dos

☆When adding WeChat friends, {#blank#}2{#/blank#} yourself and explain how you know them.

don'ts

☆Don't send long voice messages because it's hard to follow and remember.

☆Don't share your friends' contact info (联系方式) with someone {#blank#}3{#/blank#} to them before they agree.

☆Don't add your friend to the group chat without asking for {#blank#}4{#/blank#} permission, because they may not{#blank#}5{#/blank#} the new one.

☆Don't use all big letters because it's impolite.

Conclusion: The key to keeping good manners online is to be thoughtful.