语言是人们交际的工具。但人们在日常谈话时，除了口头语，还有一种重要的交流方式，即非语言交际。那么，什么是非语言交际呢？非语言交际就是除回头语言外的所有交际行为，即身势语，指人们不用语言和文字而是用一些“无声的语言”，如手势、动作和面部表情等来表达说话人的 Language is a tool for people to communicate. However, in daily conversation, in addition to spoken language, there is also an important way of communication, that is, non-verbal communication. So, what is nonverbal communication? Non-verbal communication is all communicative behavior except back-language, that is, body language refers to people who express their speaker by using “silent language” such as gestures, gestures and facial expressions without words and words