[Mettaton snaps his finger before letting it transition into a loose point in her direction.]

Yes! Astoria's temple isn't a big place. So it comes as no surprise that I've seen you around, too! Not that you've taken on too great of a transformation, appearance-wise. You're still lovely!

[He takes a moment to analyze her appearance, which leads him to the obvious conclusion.]

What's it like, having turned into an elf...? Changing from robot to human has been a thrill a minute... But I have an appreciation for even the smaller details.