Honestly, that answer would have been enough - he's gotten less of an answer for other questions in other conversations, and he's trying to be better about not prying where he's not welcome. But then Ten-Nank continues, and they've got him dead to rights: he is curious, and he does want to know more, especially with the new implication that Ten-Nank isn't just the person he sees before him, but something more, at least where they're from. "Yes," he says with a smile, "I would like to try. Even if it doesn't completely match up, I think we can come close enough for understanding."
no subject