Frisk's expression loses some of it's diamond-hard edge. Both kids operate in different ways - Chara bares their fangs, but Frisk prefers to keep their claws hidden, and even tries to convince themself they don't exist at all.

They sign in return - something about that just feels right, somehow.

[Um. Yes.] A pause. [Hi.]

A small half-wave, the fingers curling down onto the palm. They didn't think through much past this point, but they still have to ask, before anything else gets done, brows pinching. [Are you okay?] First things first.

There's a pulse of discontent from Chara. Frisk sends I-know-what-I'm-doing back, and while there's a response of I-doubt-that in return, Chara settles somewhat, watching hawklike.