请你对下文内容进行修改。文章中共有10处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏词符号(∧)，并在此符号下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下画一横线，并在该词下写出修改后的词。
注意：1.每处错误及其修改均仅限一词
2.只允许修改10处，多者 (从第11处起) 不计分
Although we may not realize it, but when we talk with others we make ourselves understand not just by words. We send messages to the people around us also by our expressions and body movement. A smile and a handshake shows welcome. Wave one's hand is to say "Goodbye". Nodding head means agreement when shaking it means disagreement. These gestures are received both by Chinese and English speakers as having the same meaning. But not all body language means the same thing in different country. Take nodding the head for example. In some Asia countries it means not "Yes" but "No".