For a moment, she doesn't know why she's being addressed as Penelope- and then remembers. Ah. Yes.

There's little reason to keep up that particular charade anymore- she's already dropped it with certain people- but there's a degree of awkwardness in trying to explain that her name isn't really what she said it was.

She smiles up at Kate nonetheless, a little sheepishly, and closes over her book. "Oh, er- I'm taking a break from taking a break, put it that way. Probably not very social, I know. Enjoying the party?"