[Whatever smirk there was on his lips totally fades into some big, frankly a little childish smile as he rocks his own hands on her wrist up and down as if he were shaking the hand of an important official. No, he does not notice the wand. Because, instead, he's too busy making direct eye contact with her]

It's okay, I won't betray your secret or tell your enemies or anything like that-- oh man, actually, what sort of enemies do you fight?! What's your transformation like?! Actually, I'd get if you can't show that to a civilian, I probably wouldn't even be able to tell when you're transformed because of magic or something like that- but! We need to hang out more, Harriet!