In this snippet, we have characters taking action (Pierre cleaning and cutting; Corinne stuffing and cooking) and that action tells us something about the characters: they know how to cook, they do it with care, and they seem to cooperate.
But through their actions we also encounter specific details about the world (the fish has silvery scales, bones and guts, and the recipe has it filled with herbs and covered with orange juice).
So we learn about the physical details of this world by following what the characters do.
Here are a couple of examples using the same approach.