Severus Snape
Severus dressed very nicely in some of his more formal but still more modern clothes that Draco helped him select a while ago. Marietta has taught him to take better care of his hair. He'll never be a handsome bloke, but he no longer looks like he doesn't care what he looks like!
OoC I would love to use this as an opportunity to 'network' Severus in interactions with people he doesn't normally run into. He will probably choose to sit with familiar/safe faces - as far away from James Potter as humanly possible. Draco, Ernie, Alicia, Amelia, Marietta and even some of the children - Bellatrix, Arianna, Evan - would be considered among these 'safe' faces that he'd choose to sit with for the actual meal. Maybe Narcissa? But he will also wander the room, near the snacks table and beverage table, as well as wander a little through the public corridors of the castle. He will not try to open any closed doors.
Severus will respond, in character, to anyone who wishes to interact with him as indicated by replies to this entry. Find him/bump into him wherever suits your fancy.