Her brows arch up toward her hairline when he walks in- he's a little, uh, conspicuous, as it were- but all sense of surprise or judgment is smoothed from her face by the time he joins her.

She huffs a laugh at his joke, "My mother would be very fascinated with your... extra appendages," she has no idea how to be polite about that, but she took a stab in the dark and feels pretty good about where she landed.