Again, forgive the "duh", but when I compel the Hunger, should this come in the form of a Discipline roll or just a role-playing situation based on what's going on in-game? My player is trying to hide the fact the fact that he's infected so I suppose that this would represent opportunities to complicate that. I want the Hunger to be a big factor for him character-wise so that when (eventually) the Red-Court is eliminated
it's a "big deal".
As far as the fangs, while I suppose he could break skin with his normal teeth, it does increase the "ew" factor for him ;D