She seems to be attentively listening to him, all ears despite the fact they've never spoken before, but then there's that little 'oh'--

And Madoka immediately looks to see what he has spotted. It's easy to see the fish with how shiny it is, and Madoka's mouth drops in slight awe as she watches it.

The comment just makes her giggle more.

"So cute.. It's like watching a nature documentary!" Not that Madoka ever does, but she's seen her dad back home watch them on TV! "I've never even seen anything like this back home, I don't live close enough to the sea for it.."

It's said still slightly shyly, but the atmosphere on the island is just too good to be completely meek in the face of a stranger - or at least a face she's seen around the train, but who she's never spoken to.

"Did you live by the sea, s-- um, Tidus?"