Started a singleplayer world to go and see one of the villages. The villagers all walk around with their hands together, looking aimlessly at their crops. One looked at me and nodded curtly.
That really is it. As with the villages in Pazland, the local terrain hasn't helped things. One house's door was several feet up, so I had to build some stairs up to it. The church's door was underground, trapping the priest inside.
When night fell and the surrounding area became infested with spiders, zombies, creepers and skeletons, the villages continued to wander around their crops and didn't notice. The mobs didn't attack them either. When I went down for a closer look, a zombie chased me into a house and the two villagers inside (a butcher and a farmer) just watched. I ran back outside and got blown up by a creeper.