LOL. Maybe, but I think it more likely he's trying to teach the human how to make the leaves bite sized to eat them, or maybe to rub the leaves on his body as insect repellent/temperature regulation (some monkeys do this; I've read that this kind of monkey uses crushed millipedes or ants, or urine, or anything else with a strong smell, for that purpose).
Cupichin monkeys also do something else pretty extraordinary:
It takes it about three minutes, but delicious nut is its reward.