"Then let's do that sometime! Waste time together." Because wasting time with someone is better than wasting it alone, in Tidus's very expert opinion.

"I haven't checked them out either. I never got around to checking out most of the game room before we got put on the mission." A small huff. "And I do not want to spend all day in my room. It's too tiny!"

Cramped spaces? No thanks. The less time he can spend in there, the better.