[Her eyes go wide, like she's been caught out; but the fact that he thinks she's trying to get something from him, as opposed to just sucking up into his good graces, amuses her a little too much; so she might as well lean into it, and she looks away with a sigh that's somewhere between exasperated and embarrassed.]

I dunno, I just thought... [She brushes a loose curl back behind her ear.] Maybe you could teach me something so I could earn some coin as well. So I could afford some clothes that aren't this.

[And she flourishes at her prisoner's outfit. It makes her extremely telling, with how ill-fitting and obviously out of place it is.]