Both Chris and Sylvia turned at the noise, and though Sylvia initially started at the sight of the huge alligator going through, Chris's utter nonreaction helps calm her down, and after a moment she realizes why. (Though truthfully only part of it is because he recognizes the gator but, you know, Kratt.)

Raising a hand to wave, he smiled broadly as he lifted his voice. "Have fun in the water, Leatherhead!"