[He looks over at her, realizing quickly that he doesn't even need to shake his head. She seems to get it without any sort of hint or prompting.]

You say that, but I'm not so sure I believe it. It could momentarily drive you insane...or worse.

[There's a heaviness to his tone that he deliberately erases out of the majority of his encounters with people. But he actually likes this girl and he's not sure if he's ready for this.]

If I asked you to close your eyes, do you think it would still work?

[...He's pretty sure he already knows the answer to that.]