In "The Lost Hero" by Rick Riordan, a humorous exchange occurs where a character named Leo expresses his playful attitude. He mentions having used his worksheet for making spit wads, indicating his mischievous nature. This sets a lighthearted tone, showcasing his character as someone who doesn't take things too seriously.

Leo also questions the reactions of those around him, suggesting that someone might have drawn on his face again. This adds to the comedic element of the scene, as it presents Leo as the kind of person who often finds himself in amusing predicaments. His dialogue reflects his vibrant personality and the fun dynamic among the characters.