[Scientific terms from Latin? Mental note: this guy is incredibly intelligent, is a scientist, has weird hobbies, or all of the above. On the other hand, maybe he's a literature fan... why Dazai Osamu? Radical???]

What's up? You seem like a pretty chill guy! [THIS FEELS SO WEIRD.] Are you into classic lit? I really like reading, but I don't know how much I can talk about off of the top of my head.

[Give him a moment to bring a hand to his chin. This isn't going very well, since as much as he can do small talk without issue, trying to use a bunch of slang without reason is difficult. On the other hand, he doesn't know much of it in English and it sounds a little forced as a result, but that's exactly what they're after.]

I think we're on to something! Um, let's see... what's something that would be hard to talk about in English? Japanese history? [Another pause. Hmm...] After the Tokugawa Shogunate was overthrown, the Meiji Restoration restored the control of the country to the emperor, and Japan underwent rapid development and brought on by the influx of western ideas and technology—

...I really can speak more English! [What's a shogunate?!] You discovered something really, really important, uh... what should I call you?