Alphonse is also feeling awkward as he goes to meet Hughes- though he'd been overjoyed to see his friend alive again, been able to apologize and let him know how things had gone, there was still a tiny part of him that felt a visceral "this is wrong" reaction to the idea of a dead person having been resurrected. Even if it was someone he deeply cared about.

But he shoves that out of the way as he goes to the library. Al's been doing a lot of running to earn some cash, and he's paying for it now; his walk is slow, and he's supported by a crutch on his right arm. However, he still smiles and waves when he sees his friend.