His jaw tightens a little, but he doesn't let himself rise to the bait, just turns to sit straddling the roof's ledge so he can watch her as she stalks away.

"Patience, maybe?" he suggests mildly, eyebrows arching. "Possibly adaptability?" He shrugs. "But if you're interested in something more specific there's always interstellar navigation, basic demolitions, field medicine, around a dozen languages you'd probably never have any use for, marksmanship, armed and unarmed combat, chess, how to make pancakes, swimming?" It's just a random and slightly tongue in cheek list of options, though they're all things he would, in fact, be willing to teach her if she has any interest.