[His eyes are settled on her face, trying to read her reaction, trying to see if she really does like it or she's just playing at being polite. He thinks he chose well; and if she's still willing to learn how to play, it doesn't look like he was just assuming too much.]

You really think it's wonderful?

[That makes him glad, makes his smile widen more.]

No, no, I definitely want to teach you. I just... I don't know, just giving you one more chance to back out if you think it's too weird or whatever. I get real into this stuff.

[He's kind of a nerd like that.]