It is one of those behaviors where we think it is cool to do it, but uncool to admit you are doing it. In a lot of human interactions, there are things that ar

It is one of those behaviors where we think it is cool to do it, but uncool to admit you are doing it. In a lot of human interactions, there are things that are fully accepted and cool to do, but if you try to point it out (or if you can't naturally do it and poorly attempt to emulate it), it becomes very uncool if not downright creepy.