[ JJ grins at that, looking quite pleased with himself—as though he'd done anything of merit. ]

I knew you'd have some nerdy hobbies. [ Which is... rude, but his tone isn't particularly mean spirited. ] I had to read a lot for university too, some of the books were so boring, but I always forced myself to pay attention and take notes. If you're going to do something, might as well be the best you can be at it, right? There's a lot I like reading about too, I mean...

[ And he's going to keep rambling like that, going over his various hobbies and the subjects he used to study back on Earth. It's possible he could've talked about himself for the entire walk home if not for the cough that eventually cuts him up, his body jerking away from Lukas to keep from coughing on him because that's gross. ]