Seriously, I never used to think about this so much that I actually fretted about it (what a great word lol, it makes me sound dainty or something).
But since about a year ago I've just thought too much more frequently about characters being "realistic" and their actions/reactions/dialogue being "realistic". Even though honestly if the characters themselves are believable, then this doesn't matter as much.
I think my main problem is that I put myself into characters' "shoes" too often. As in, I think about how I would react in that situation, or what I would say or do. But that's just ME. There are all sorts of people, all sorts of personal