[It's pretty close to a smile, this time. Closer than he usually gets, anyway. He doesn't even notice at first. With how contagious Carl's grin is, he unconsciously begins to mirror it a little before he catches himself.
He looks back down to his notes and nods. "We'll find books," he signs.]
no subject
He looks back down to his notes and nods. "We'll find books," he signs.]