[The fact that Dirk is willing to respond instead of simply returning his attempts with truly awkward silence is effort enough in Nagisa's opinion. He could work with this.

Hey, wait, does Dirk mean even with the sunglasses? Is that perhaps the larger, unaddressed question?

There's more interesting subject matter than that, though. Right? Like, alright. He's used to diving "like this." Does Dirk mean deep sea diving specifically? Should Nagisa ask him that? Ah, hell.]

I didn't have many interesting places to swim where I grew up. Maybe I would have liked living somewhere closer to the ocean.