Punch The Guy (On The Shoulder)

For Girls Only: Guys love it when you punch them on the shoulder after a joke or something! Not too hard though, then they'll just get mad or some...cry. But believe me! I'm a guy and I think it's super Cute! Only one girl I knew did this to me and it blushed the hell out of me! Of course I liked her but it was like a different kind of flirting and since not many girls do it, it felt really good. Not all girls do this but if the guy likes you, this will definitely make him blush.
Example: Boy: "Hey, aren't you gonna give ME something?"
*Girl that Boy likes punches his shoulder*
*Boy blushes*
Boy: "Ooooouuuu...." (even though it doesn't hurt)