body language is used by people for sending messages to one another. it is very useful because it can help you make yourself easily understood. when you are talking with others,you are not just using words, but also using expressions and gestures. for example, waving one's hand is to say "good-bye." a smile and handshake show welcome, and clapping hands means congratulations. nodding the head means agreement, but shaking the head means disagreement. the gestures are accepted both by chinese and foreigners as having the same meanings.

　　different countries have different body language. for example, men in russia, france and arab countries kiss each other when they meet, but men in china or australia shake hands instead of kissing. people in puerto rio like touching each other, but people from english speaking countries do not touth each other. if you touch an english person, you should say "sorry.' people in arab countries like standing close to one another when they are talking, but english people must keep a distance away when they are talking. in some asian countries, you must not touch the head of another person. in arab countries, you eat using the fingers of your right land;the left hand is not used at all. in parts of asia you must not sit with your feet pointing at another person.

　　when you use a foreign language, it is very important to know the meanings of gestures and movements in the foreign country. following the customs will help you communicate with people and make your stay there much more pleasant and comfortable.