谁能给写个关于bodylanguage的英语作文?要初中水平就行 简单一点50~60字

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 ones 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.