Peter looks from the glowing net to the stick in his hands that he was halfway trying to fashion into a spear. He supposes it can become kindling instead.

"Alright, sure. You catch the fish and I'll figure out the fire."

He knows how to light a campfire, in theory. Knows the chemical and physical changes that the wood needs to undergo in order to catch alight. He just doesn't have the practical experience of having done it before.