Nah, a better trick is the Houdini, I think I read it here:
So you're bangin' a chick from behind and she's taking it like a porn star. After a considerable amount of time (because you're no slouch), you roar with the fury of a tiger in heat - "BITCH, IM'A BUST-A-NUT!". Then you spit on her back, as you would on any normal day.
Soon after, she spins around on her calloused knees grabs at your man-snake, about to put it in her mouth. You grin, mischievously.
"HOUDINI!" you exclaim with the fury of a thousand suns as you grab it back, and cover her eyes without ceasefire.
***
Hm, anyway, magic tricks would be great conversation pieces, just do it when nobody expects it, and do it very nonchalantly like everyone can do them. Then try to bait chicks since you know how to do them but they don't.