It's nice to see that the students do seem at least mildly interested; that had more or less been his greatest fear, when it came to teaching a new subject - teaching in general. Obviously Sirius has always found the subject quite fascinating and more than a little useful, but not all of his friends seemed to agree.

All the faces looking up at him seem rapt with attention, however, so he'll take it.

Once they set to work, Sirius makes his rounds with his thumbs in his pockets, poking his head in here or there wherever he's beckoned, but of course it isn't too long before he's sidling up behind little Remus (gosh he's so very little) with an easy smile on his face.

"Having trouble?"