In “the raven and the first men: the beginnings of the haida,” which evidence best the reader infer that the haida might find it acceptable behavior to play tricks on one another?

The question is asking to states the evidence that best helps the reader infer that the Haida might find it acceptable behavior to play tricks on one another and in my further research, I would say that the answer would be that the story presents Raven;s trick against the Sky Chief in a matter of fact manner. Hope this would help 

Can you provide the categories and list?