... Mmm. [It's not quite hesitation when he takes a moment to turn around, but maybe a little rush of self-consciousness that he squashes down just as soon, just from the attention turning back on him. He's still bad at that, Shiro or otherwise, but... it's better at least. He's nodding with no qualms.
He shifts on the edge of the tub, turns so his back is facing Shiro, and breathes out.]