yes, but speaking isn't everything. some experts say only thirty percent of communication comes from talking. your gestures and other non-verbal actions matter, too.
but in different cultures, the some action can have different meanings. when you have to meet someone from a different culture, be prepared. do you know what kind of gestures and customs are appropriate.
let's look at shaking hands north Americans like a firm handshake. but the french prefer a light, short handshake. if you shake a french person's hand the north american way, he or she may not like it. people in eastern European countries and some Latino cultures prefer shorter handshakes, too. don't be surprised if a Brazilian gives you a hug. if you misinterpret gestures of introduction,your friendship may get off on the wrong foot.