"Hey mister," Steph says as she steps up beside Billy. She's his plus-one and she doesn't exactly know anyone else here outside of a book, so they're sticking together. Even if he is being sort of weird. But then again, she's being weird too, considering she's afraid to go talk to the newlyweds in case she just starts blurting out random Hogwarts facts instead of making conversation. "You want some punch? Because I am all over punch patrol."