Abstract: In foreign language classes where teachers and students interact greatly,various approaches of nonverbal communication,including body language,play a very important communicative role.The purpose of this essay is to discuss with those who work at the front line of foreign language teaching how to effectively use different nonverbal communicative approaches in order to improve the quality of foreign language teaching.The approaches mentioned in this article include teachers' body language,environment language, paralanguage.Typical examples are given to show the application of non-verbal communication in foreign languages.The focus of this article is teachers' body language including smile,eye-contact and gestures.