"Hey, lemme throw in some points too! You know, we can get more than just the burritos and tacos too." If they're really going to get all that, then- "You can get appetisers and a dessert with it! Also trying to see if you can get drinks too if you ask."

Does that suddenly sound a lot? Yes, and Tidus even adds with a grin: "I try and get as much outta the train as possible."