I have recently become pretty sexually confident and been getting with more and more women. At parties, I have no problem introducing myself and talking to what ever girls I want to. I am relatively attractive, and often like to put my arm around girls waists, which many respond positively to, some are neutral. With simple flirting stuff like this, is confidence vs. Creepy simply in the eyes of the woman? Or is there a specific way I will always come off as confident, yet not creepy?