【正文】 the concept of physical contact is more unclear than that in America. The most mon touch behavior is hands shaking and hugs. In China, people greet with each other with head nodding,。 it is a concrete manifestation of people’s lifestyle and way of thinking. Cultural differences have clearly reflected in their body language between China and the Western countries.Everyone involved in intercultural munication must understand the differences of body language between westerners and Chinese, be aware of the manners and the standards in order to avoid municative barrier or even failure. Contrastive study of facial expressionFacial expressions are an important channel of nonverbal munication. They are the foundations of body language. Some are instinctive and some are learned by watching others. People often pare face to the mirror of soul, and facial emotion is external expression of intrinsic feelings. it is the best way to help people express feelings. Human faces expresses more than one can imagine. The movements of the speaker’s eyes, mouth, and facial muscles can build a connection with his audience. Eye focus is the most important element in this process. What’s more, facial expression is more important in municating sincerity and credibility. Nothing else so directly connects the speaker to his listeners, whether in a small gathering or a large group. The speakers draw the attention of a room by looking at the eyes of each member of the audience and creating natural pauses between phrases. The pauses not only boost attention, but also contribute significantly to prehension by allowing the listener to understand the message.East Asian participants focused mostly on the eyes, but those from the West scanned the whole face including the eyes and the mouth. The Chinese people are more reserved, that is they containing much but revealing little. While the westerners are show their feelings directly. Therefore in the business negotiation, the westerners can be very blunt. They laugh when they are pleased。s eyes. Sometimes nonverbal behaviors will be contrary to the speech acts, however, it seems to be more credible. Just like when a naive child refused the food people gave to him, he may say No, thanks, but actually he stared at the food for a long time, and his tongue moved to show that he wanted to eat it very much only because his parents did not allow. A man said to his colleague You have done a good job but at the same time his face may show his dissatisfaction. And we will know that on the one hand, sole speech acts without the pany of nonverbal behaviors in munication are always difficult to municate efficiently. On the other hand, we should know that nonverbal behaviors could only express the accurate information under a certain language environment. RegulatingSometimes conversation can be described as a series of listening and speaking, such as start chatting, change topics and give an end to it. Nonverbal behaviors are usually used to regulate such kinds of cooperation. When there is a conversation, one person will show his partner about his emotional response and attitudes with the help of nonverbal behaviors. His body language will regulate his verbal language by using eye contact, gestures, facial expression and so on. Thus, regulating is usually used to keep talking in a facetoface conversation. It implies the speaker that he can go on talking, repeating again, give a further explanation, speak faster, speak more lively, and invite others to give a speech, etc. For example, the one who was speaking would stop talking and look at another one to show that it is his turn to speak. At the moment, the man get the signal will start his speaking if he understands. In class, teachers always adopt stopping or staring at the students39。s words and nonverbal behaviors are the real feeling from one39。s attention, and then the body language that he pointed at his own big stomach achieved a lively result. Nowadays, written examinations and interviews are always included in an employment. Through the interview, the examiner judge the employee39。s difficult or impossible for the athletes to hear each other, so they give each other a gesture of v to increase their confidence. And now we often see that in a football match when the player kicked a goal, he took off his clothes and ran around the playground to show his excitement. We still remember that in 2004 Athens Olympic Games, when Liu Xiang got the Gold medal, he put up the national flag and run around the playground. Second, in some special backgrounds, the using of body language can be more implicit and proper. In public places, someone may be impolite or rude。s pany. For the most part they municate on the content at the same time. Repeating means some of the nonverbal information can be repeated with oral language. Specifically we express the content through words and through body language. Furthermore, repeating means that people do the related behaviors while speaking, which are to illustrate and emphasize the meaning the speaker likes to express. Movements of head and hands are always playing a role of strengthening when talking to others.For example: When reading some excellent works and wonderful sentences, we will slap the table and shout “bravo”. Striking the table is an acpanying behavior, expressing excitements and pleasure. At the right moment when a speaker says We have to give up it, his head tend ahead and his palm or his fist press heavily on the desk to show his firm attitude. One more example, you tell somebody that the office building lies to the west of the teaching building and meanwhile your finger is pointing to the west to repeat it. Sometimes when you say the number one, you put out one of your fingers to help you express your idea. When you ask the students to keep quiet in class, you may say＂Silence! Stop talking! and you put your index in the palm of another hand to make a gesture of “stop