I have discovered a comedy gem:

• Tear off a tiny piece of paper and roll it up into a little ball that can fit between your thumb and forefinger.
• Holding said ball, pretend to pick your nose with your fingers, hiding the ball near your nostril.
• Stare at someone in the room, and when they eventually look at you, gesture the motion of picking a big ‘ol booger out and throw the little ball at them.

This has particular effect if done while recording a radio show. Comedy. 😀