How did Richard get made a fool by the bootleggers?

In Chapter Eleven, Richard is on his way to work when he encounters another young black man looking for a friend. The two wander down toward the rivers edge and find a bottle of bootlegged liquor. The two sell it to a white man nearby, agreeing to split the five-dollar profit. But when the other boy does not return with the money, Richard realizes that he has been scammed. The chapter ends with the passage: "Last night I had found a naive girl. This morning I had been a naive boy."