The boy likes to suck, although for sure he's not so good at it yet.
He treats a pacifier like my other two kids have: with a serious look of distaste, acting as if he may choke to death, and not looking for it again. (Two of my kids have also acted that way sometimes when I tried to feed them early on; it makes nursing frustrating to say the least.)
He mostly sucks on his lower lip, or his fist, now that he can finally get it to his mouth. He has tried to suck on his palm, like Babs used to, but is still struggling with the method. It's really easy to poke your eyes while sucking on your palm.
And today, I noticed, as he was sucking his fist, that he is working on finding his thumb. (Of course one time, he made the choking face again, so who knows.)