The "Simple Knot" trick. Bet your subject that you can hold a napkin at 2 ends and without letting go tie the napkin into a knot. The trick here is pretty simple actually. Just fold your arms prior to grabbing hold of the napkin. When you uncross your arms you should have a neat little knot in the center of the napkin.
A few more? "I think I could fall madly in bed with you." "Want to know what winks and screws like a tiger? (Wink.) "Do you like bacon? Wanna strip?" or "I may not be Asian, but I'll still eat your cat!"
If all else fails go ahead and resort to just being yourself. Who knows maybe that will work.