Sora noted Riku's appearance at the deeper end of the pool...it looked like he was keeping an eye out for Namine, which wasn't surprising. He nodded to Riku, then turned back to Roxas and Xion.

"Okay! In order to know how to swim, you gotta know how to float, first! It makes swimming a whole lot easier if you're letting the water do some of the work for you."

With that, Sora flopped over onto his back in the water, and spread out his limbs to try and demonstrate. "To float, just spread out and let yourself relax! You don't need to hold your breath or anything. Just let the water try to buoy you up."