NPC's should be doing something, not just standing around with a blank expression on their faces waiting for you to come interact with them. Except, like, guards. 'Cause their job is to stand there and wait for something to happen.
Anyway, this week I worked on getting the guy here to move hay. So sexy, I guess. I think he's the last NPC that was just idle. I've got to wrap up a few behaviors, but this level is getting close.