She wasn't even looking at him. She was in a conversation with the guard whose arm she was holding. Yet there he was, doting on her, kissing her hand, not for her, not for the world, but because he simply couldn't help himself. And the fact that she doesn't react to it means this is something she's used to; "Oh that's just Barack being Barack." And you ask him, and he'll likely simply say, "That's just what Michelle does to me." Beautiful. Just beautiful.