在外语教学与研究过程中，人们往往只注重于语言本身，而对交际过程中的非言语行为却容易忽视．其实，人们交际时可资利用的方法和手段不仅有言语行为，还有内容极为丰富的非言语行为． In the process of foreign language teaching and research, people tend to focus only on the language itself, while non-verbal behavior in the communication process is easily overlooked. In fact, the methods and means that people can use when they communicate are not only verbal acts but also non-verbal behaviors with extremely rich content.