There is a bit of a rolling of the eyes at the laughter. She reminds him of Lucie, right down the the laughter at the mention of his dress sense. But when she mentions what he wears, the disgust goes from mocking to an actual mild one.

"I suppose I could possibly make tweed and the bow tie work, but a fez? I prefer my hair out and about, thank you, and even if I did have head wear I would pick something more dignified than a fez."

More buzzing, and then an annoyed look from The Doctor.

"Well, this isn't telling me anything, except that this is some high quality fabric."