This is what I stare at all day long...my desk faces a wall. It's like I am being out casted from everyone else. No, not really, but I do face a wall, and sometimes I sit and stare at the wall just to sit and stare. For no reason. Sometimes I am not even thinking when I sit and stare - just a blank mind sitting and staring. During the summer I sit and watch spiders crawl around on the wall. There can be some really huge ones and I really don't want to kill them...then of course all the babies start running around I and I get yelled at.
Usually my desk is piled with all sorts of paper - because my boss (my loving brother-in-law) likes to pile all the paperwork there :)