Yeah, the Plain Sandwich (the one shaped like a card - it also has a free card inside) and the Cook's Sandwich (shaped like a pizza slice).
The best way though is to recruit Pharoah the Cat and talk to him with it following you. You can find Pharoah, usually, in the Abandoned Dorm at 7:00 AM, though it's randomized. Either guess correctly which part to pet on him (it's also random) or just feed him any one junk Sandwich (it'll make him like you). Then you will ALWAYS get 'great' results regardless of what you talk to others about, so long as it's not rumors.
** PSN ID: GenocideHeart ** Does Hydlide really count as a game? I thought it was supposed to be some kind of torture session. --Tocawe