Sabrina is obviously there since she planned this thing. She'll be bouncing around from one thing to the next. Chatting to her friends, dancing with them, pulling Nick out onto the dance floor when she can and probably heading off with him for an hour or so at some point in the night. She's always down for karaoke and can be competitive in games. She'll be chatting up her coven friends and there may be some magical fun happening in one of the other rooms. She's wearing this.
Henry will be showing up and not really drinking. LOL bad experience once. But he's down for games and will chat with those he's met at these things before. he might dance.