[Oh, he gave himself away. Ren's smile sours momentarily in the manner of someone caught in something they were trying to avoid, but at the very least, he doesn't attempt to lie. It's much harder to conceal the truth when speaking through thought, anyway, and switching back to speaking without the assistance of the cuffs would be a giveaway of itself.
How best to explain it, though...] I guess I'm used to having a lot of company. Most humans get scared about having voices in their head, but for me it's weird not to~
[He's still trying to control his tone in his thoughts to some degree, hence the slightly cheery effect. Unfortunately, Ren isn't the most focused person in the world, and when he lays his head down again, a more honest thought slips through.]
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How best to explain it, though...] I guess I'm used to having a lot of company. Most humans get scared about having voices in their head, but for me it's weird not to~
[He's still trying to control his tone in his thoughts to some degree, hence the slightly cheery effect. Unfortunately, Ren isn't the most focused person in the world, and when he lays his head down again, a more honest thought slips through.]
It's lonely being the only one awake.