Non-verbal communication makes up from 65%-95% of the way we communicate. A big part of non-verbal communication is body language. Rules may be different in different countries. For example, in some cultures, it is not polite to look someone in the eyes if he or she is in a higher position. In the United States, eye contact is very important. Watch this video to learn more about non-verbal communication. You can also learn how to tell how other people are feeling - are they bored, are they lying, do they like you???