Roxas had started out getting down in the water on his belly, but he had turned onto his back, following Sora's example. Namine's approach caught his attention, though and he lost whatever zone he was in that it was working out. Probably, it was trying to look and see who all was around that burst his bubble, so to speak. Still, he had a feeling he had it. Mostly.

As much as he could see how being able to swim was useful and floating was kind of relaxing, he wasn't so sure he liked being wet outside of taking a shower or bath. Maybe it was the lack of the memories from before and his experiences up to now lacking anything to do with swimming, but he was really only interesting learning now because of the usefulness... It might also have had something to do with nearly drowning on a mission and Axel being incredulous that he couldn't swim, though why Axel thought he should have been able to swim went unexplained at the time.

"I think I got water in my ear," he grumbled. Yeah, practicality was really the only reason he had for learning (or relearning as the case seemed to be) how to swim.