It's slow, the look on her face as his accusation sets in for the specific, direct reasoning he opts to use. A steady grin, a little too sharp— a little too knowing— like she's been caught with her hand in the cookie jar.

And really, she has.

"Chico listo."

Usually it's easy to lean on perceptions or affection to let assumptions do the talking for her; sometimes it's refreshing, meeting someone less inclined to fall for it.