Finding something to munch on and then munching on it.
Staring at stupid pictures on one of those-you-know-that-with-the-pics sites.
Moderating some forums, reading others.
Staring at one point and achieving a zen-like state, putting my head on my pint mug and looking at the distorted refraction of myselft.
Scratching.
Playing on-line games like monopoly/inklink that don't require installation.
Sleeping.