The girl seems to consider his words. The first part of what he says, mostly, but there's a brief consideration of the last part too before she speaks up with: "I'll come with you. Two sets of eyes are better than one, right?"

And since he doesn't seem overly social, Ange figures she can tolerate his company. Better to be looking around here with him than with one of the local chatterboxes..

So if he starts walking, she's more than ready to follow. And to actually keep out an eye for anything that looks like the device he's holding, considering that Ange does want to solve the mystery of what happened here.

Still, she can multitask, which means that as she's looking around, she can also ask: "What do you think it'd be like? The sentencing here?"

Sure, no one would have a perfect idea of it, given that none of them have experience with it. But maybe that's exactly why she wants to pick his brain a little, see how different people imagine it.