She...couldn't read his expression at all, nope. Rin was more of an empathic and instinctual reader of persons, and having never really interacted with the advanced kid, she didn't know what her instincts pointed toward. Anyway, even if she thought he was uncomfortable, she immediately leaped to a different conclusion as to why.

She squeaked in concern when her eyes fell on the burned and blistered hand. "You should see the nurse!" That wasn't actually an answer to what he asked, just an immediate response to seeing a scary looking injury like that. When she processed his request a moment later though, her surprised expression turned into a more determined one.

She pressed her lips together into a line and held out her hand. "Let me look at it closer!"