Do that, and I just might have to give you a slap.

[Is she teasing? Or is she serious? It's hard to tell. But the second the words are out of her mouth she smirks, and moves right on into more easygoing banter.]

I've already told you my name. I'm Clara Oswald, and I belong to no one, remember?

[She looks rather proud of herself for repeating it, just as a friendly reminder. He probably needs it, she wagers.]