"Well, neither am I," he admitted, blushing faintly at the mistake in calling her human. "But I'd like to think, sometimes, that I'm a little bit more in tune with humans than with my own kind. As for how I know you did the Right Thing," he shrugged, a small, almost cute gesture, "for one, you did it to help your friends. That's certainly not a wrong thing to do. It's commendable. And judging from what you said," albeit mostly guesswork and reading between the lines on Aziraphale's part, so he rather hoped he was correct in his assumptions, "your Roxas seemed to think so, too."