[Patient as always, Ochako points for him to stand just beside the water. This isn't too bad of a start? He's going to be a fishing pro in no time.]

Stand there and throw it in. You can see the deepest part, can't you? The really dark grey part? [She mimes pulling the net back and casting it outward.] Make sure you toss it right on top of that!

[He can do it!!]