Turning into a unicorn does rip up his clothes, and the less he has to think about that the better. The most important thing to think about is that he's successfully convinced another person that he's not related to horses in any way, shape, or form. That's something worth celebrating.

"Huh? It's cool? I don't think it's that interesting, but thanks, I guess..." Even though his wolfman ability is false, he still feels flattered by the compliment, and he scratches his cheek. "Your powers are the impressive ones. I've seen some powerful magic, but yours has to take the cake."