Aaa what a nostalgia trip it is, talking to her. He obviously gets who she's alluding to, and just as obviously has a little burst of fondness at the thought. Whatever else might have changed, he still has quite a soft spot for the Brigadier, and he chuckles lightly at the reference.

The nostalgic smile grows just slightly bittersweet at that gently touch, although any sadness fades (or at least is very efficiently tucked away) as soon as she mentions him owing her a dance, and he laughs cheerfully.

"Ohh, absolutely, yes, brilliant, I love dancing, did you mean right here?"