You spot Iroh, tinkering with a machine you don't really recognise. Maybe one of her personal projects? Once you get closer to her, still without her noticing, you can vaguely hear her muttering to herself whilst she works. Something about, uh... moths, if you're hearing correctly?

She looks up after a moment, flinching a bit as she notices you.

"Oh, uh, hey there! Sorry, I was lost in my own head again. You need anything?"