Simple hand gestures like making an “OK” sign, or “V” for Peace or Victory or even a “thumbs up” sign with your thumb and fingers, have very different meanings in different countries around the world. In Canada and the United States, we consider these little hand gestures to be innocent signs of approval. In other parts of the world, however, these gestures can have very different connotations.
In Australia, Argentina, Greece and the Middle East, giving the thumbs up gesture is considered rude/obscene and basically means “Up Yours”.
Making the V sign in Australia is also considered to be a vulgar gesture. If you hit the palm of your left hand with your right fist in Argentina, you are indicating that you don’t believe what the other person is saying and consider their comments to be stupid.