I might be wrong, but I think the more dominant rat in a group always comes around first, and eventually the submissive follows the others lead.
gal, I sure will. Though I think my rats got a URI (in the pet store they were housed in a tank), so I'm taking them to the vet today at 2 (it's about 1 now) to get them checked out. I'm sure that once they're feeling better they'll be a lot happier. But I will also stop giving them treats while they're in the cage. Maybe this will stop the ghost-nipping. I don't know what to do about him biting my socked toe really hard though :C Any tips?
trematode, oh 16 days is early? Haha, I guess I'm just too excited for my buddies. And yes, actually, I've noticed that both boys do greet me at the cage door a lot more now. In fact, both greeted me at the door today.