There's this guy I know who will always poke fun at girls, playfully insulting them, etc etc. Girls fall for him like crazy (this is a short guy I'm talking about)

I've also noticed for myself personally that when I take a playful jab at girls they have always reacted better than when I'm "friendly" with them. The reaction is always the same - that gasp with a half smile, followed by a giggly tone.

What is it about teasing?