Tidus has the right idea. Keeping him talking will help. He nods at the taking it easy, learning more would be good, but a little at a time is also a good idea.

"Yeah, got trains and cars, electronics." Talking about home isn't so bad. He sits up a bit straighter, "From London." Wait uh, different worlds apparently, "Earth that is. Still weird that knowing there's all these other places, planets."