nonvernal communications

Having been in the United States for thus a long time, I realize that one of the major difference between them is called nonverbal communication, which includes eye contact, gestures and body space and any other communications without languages. The nonverbal communication is deeply influenced by different culture since a same nonverbal communication might be used to express different meanings by people under different culture, such as Chinese and American.
Numerous nonverbal communications are used differently when looked deeply. With over 5000 years of history, China has rooted its own way in expressing emotions without words. It is likely that eye contact is defined as different ways in different situations. Eye contacting with elders is considered to be rude sometimes while it is a way to show respectability in America. Compared with Chinese, American are eager to share their emotions and expect to be respected when talking with others. However, eye contacting has some different meanings when used under different culture.
American are more likely to be sensitive to body space than Chinese. Enough space is needed when American are talking with each other and it will be considered rude otherwise. Private security is thought to be important while usually Chinese pay more attention to the content instead of the space.
In addition, there exist some universal nonverbal communications such as smiling. There is no doubt that smiling is an easiest way to show interest and respect. Smiling can dissolve many misunderstandings when communicating with people from other culture.
All in all, nonverbal communications are an aspect of a culture. In other words, culture is the origin to generate the meanings of nonverbal gestures.