WeChat  

dos

☆When adding WeChat friends,  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  to them before they agree.

☆Don't add your friend to the group chat without asking for  permission, because they may not 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.