Well, Charlie's just gotten his shit handed to him by someone he sleeps in front of in what's theoretically his own home and he feels a kind of way about that, he feels angry about John getting injured in front of him, he feels both good and bad about the strikes he got in (and then bad again for feeling good about them), he feels full of unresolved violence but he's also thinking oh thank fucking god, and he's wondering if whatever the hell caused this is going to happen to him or John next, or even to Arthur again --

So besides the red bruises, a few shallow cuts, and the wheezing, he presents to a once-over as pretty much 100% okay. Also his ears are ringing like a couple of reed instruments, but that isn't really visually obvious.

"Kid got a bee in his bonnet about cans," he rasps, pleasantly resentful, and then he goes into a brief but magnificent cough that's like half Arthur's fault and half the fault of Lucky Strike.