As Namine stepped into the pool, Riku half-walked half-swam over towards the bottom of the steps. He didn't say anything, but simply watched her. That being said, he kept an eye on the others, too, in case anything were to happen. Sora was extremely capable, but an extra set of eyes never hurt.

"Water in your ears happens. You'll get used to it." Well mostly. To this day Riku wasn't a fan, but he could deal with it and he knew how to get it out. He planted his feet on the pool bottom and stood. "Try this." He turned an ear so it faced down and tapped his temple with his palm before pulling the earlobe.