[Rossiu gently pushes the Porygon out of the way so he can continue to talk to Chihiro. The Porygon doesn't seem to mind, just beeping at Rossiu in a way that's probably apologetic.]

I'm very interested in technology, but I have a lot to learn. I'll definitely have more questions for you. My name is Rossiu.

[Surnames aren't really a thing in his world. Sometimes people use their village's name as part of their name to differentiate where they're from, so maybe that's what Chihiro is doing? Chihiro's also a pretty unique name, huh.]

It's very nice to meet you. You've been a great help.

[Rossiu's expression hasn't really changed much, but he does sound happy.]