[Erwin glances where she's gestured, and he's not surprised to see another picture frame sitting there, with an image of the two of them inside.]

Yes. They're called photographs, I've heard, and are made using something called cameras.

[How that all works, he has no clue, but he knows the names.]

There are small levers on the back of the frame, if you want to get the photograph out. It's not a portrait, and I have no idea how we were recorded in one.