I have heard from several people that girls playing with their hair (twisting the ends) is a subconscious way of flirting, and that licking your lips is also a kind of sexual act in which you want the person you like to notice you. Are there any theories out there? I’m interested in all this and want to look it up. I was thinking Freud because he deals with all the subconscious and sexual mind! Anyone know the name of this theory?