Touch the other person's arm during a conversation. Sometimes women wait for a man to make the first move. Really gentlemanly men will wait on you. If you refuse to make the first move you may end up wondering why nothing happened. Touching a man's arm during the conversation gives him the go signal. It reassures him that yes he is enjoying himself and that you are too. It tells him that he is not misreading your interest. Furthermore this is good information regardless of the sex, it also applies to men towards women.