Picoperi can take any form but usually prefers that of a young brown-skinned, black-haired elven boy. He is never seen without his woolen vest, dyed bright green and yellow, decorated with images of llamas, snakes, and tree frogs. In battle, he prefers ambushes and traps, and employs darts that cause laughter and euphoria.1
Picoperi is worshipped by good people who look at the world with wonder and delight. Some inventors, particularly alchemists who employ jungle plant extracts, let his surprises lead them to new discoveries.1
For additional as-yet unincorporated sources about this subject, see the Meta page.