The “OK” sign
Want to signal to someone you've met on holiday how blisteringly all right, fine and generally OK things are? Stop! Beware making the round “OK” sign with your thumb and forefinger. In Greece and Turkey, for example, this gesture can be taken as highly vulgar. You are telling someone that they resemble a similarly shaped part of the human body and, by extension, that they are homosexual. In some Middle Eastern countries, such as Kuwait, the OK sign signifies the evil eye.