Wangji nods, pleased to have grasped the concept. He listens intently to the 'team talk' topics, looking a little like he's making notes in his head but happy to be doing so. "Potentially the rival team's previous matches? What you expect them to repeat in that game?" He thinks this sounds a little like warfare, which he does have practise in.
Wangji watches Tidus emote and enjoys listening to someone talk about something they love. The punch to the arm is taken with nary a jostle, he looks down at it for a second - more than a little surprised and then back up as Tidus continues. The name he mentions doesn't ring any bells, but if Tidus vouches for him he trusts Tidus's judgement.

"I suppose a sport would lend itself to keeping myself active. I do not think there are many options on board the train?" He tries to imagine a sport like volleyball and can't make it fit in the carriages. "I have not yet had the pleasure, I am mediocre at best with politics so I may have little to offer."