The Doctor was having a sense of sudden Dejavu. He'd done this before. Well, he'd had the sneaker/trainer conversation before. Well, it wasn't so much as a conversation as some scribbles through the journal - but still. Looking down he noticed that the woman was wearing heels. There's no way two people here could be wearing heels, would they?
The scratching abruptly stopped. "I talked with you before.. I mean, I wrote with you before, over the journals, about shoes," came a quite suddenly bouncy Doctor. He liked when he recognized people for good reasons and not the sort that meant they had previously threatened the universe.
He waggled his fingers, "Oh,I just have a habit of scratching my head when I'm trying to think. It's does something for rearranging my thoughts or arranging them, I'm not sure." What could be said for sure is that he did quite the number on his already disheveled hair.