"...don't give her ideas," is all Tidus going to say, like there's a chance Della would do that (she doesn't need to, physically; she can just look at you and give the same effect!).

Since he's pretty much left to stare at the boring sports ceiling though, it is giving him ideas. "Think we should bring the projector in and turn the sky into stars? Dunno if it'll reach that high."

The projection, anyway. The room's likely too big, but he can ponder it.