Body language is an indispensable part in our daily life,we can use body language to express our intentions without talk to someone,such as smile is means friendly.The body language we use mostly in our life are the "ok" gesture,smile,wave,shake hands ,and eye contract is also an very import body language.If i want praise someone ,i always pricked up my thumb.I always wave my hands that means say "hello" to my friends.and there are many other body languages i'm used in every time everywhere.Body language makes our life more rich and wonderful.