Actually, I'd be interested to hear what other mental games LWers play to amuse themselves.

Some more games I play:

• 'Fly arounds,' where I visualize my perspective moving around the room, zooming out of the walls of the building I'm in, and exploring/getting new views on places I know. It's fun to 'tag' an imaginary person and see what their perspective moving through an average day would be.

• 'People watching,' where I pick a person walking by and try to read their actions and relationships with the people they're with. They then get a full backstory and life.

• 'Contingency.' What would happen if a car drove through the door right now/that guy pulled a gun/I suddenly realized that I am actually Jason Bourne? This xkcd puts it best.

I feel that these last two are pretty common.