There were plenty of things that would make her think someone was an idiot. Dancing wasn't one of them. Penelope wasn't an idiot, she was just — so innocent, naive, or at least that was how she seemed by comparison to Katniss. But a lot of people were innocent and naive compared to her, and it wasn't as if she wished her experiences on anyone.
She still hadn't really figured out how to talk to her, but she knew that silence and keeping her distance would only make her roommate feel like Katniss hated her, so she was making the effort.
Adrenaline was wearing off, leaving her exhausted and her legs feeling weak and a little achey, so she closed the door and stepped into the room, heading for her bed to sit down.
"I like dancing," she said, because it was true. "There's nothing wrong with it." She paused, then added, "Who's Cullen?"