Jamie hadn't had a chance to answer Nanoha before - he'd gotten caught up in trying to dodge some of the larger amounts of snow being tossed around. Once she comes down far enough that Aeneas gets her covered, however, he's highly amused. "Och, ye look much better covered in snow, lass."

Since he's looking at her general direction, he does see the snowball she throws - and attempts to get out of the way. He's not quite quick enough, and it pastes him good on the side of his neck. Wincing slightly, he rubs at the area. That stung a little more than he had anticipated. Still, he's not badly hurt, and he grins up at Nanoha - then goes to scoop up more snow for another attempt at retaliation.