body languages

Each of us knows how to use our body parts to send messages but not many of us realize that people in different parts of the world speak different body languages. A signal for yes in one culture may mean no in another a gesture for "good-bye" in one culture can be interpreted as come here in another. so every culuter have it own body languages and some of them have some Similarity . for me i never had any use of body gesture was missunderstood. but i saw a lot of missunderstood body languages that happend between my friends . in additon the body languages is ver very helpfull for the people to communicate with each other .