I suppose I look for humor in most situations because it humanizes things; it makes a character much more three-dimensional if there's some kind of humor. Not necessarily laugh-out-loud type of stuff, just a sense that there is a humorous edge to things. I do like that.
Almost every scene, I re-think as I'm about to start drawing it, and at least half of the time I'm changing dialogue or whatever, or adding scenes or different things.