I think body language is one of the most powerful means of communication,ofen even more powerful than spoken language.People around the world show all kinds of feelings,wishes and attitudes that they might never speak aloud.so I think English teachers should use body language to make their class more interesting. Using more body language can help students understand more deeply,and make calss funnier,and make students more comfortable and less boring. Or students will soon feel tired and boring . I really wish my English teacher use more body language.