Leo says, "She taught me to revel. She taught me to wonder. She taught me to laugh. My sense of humor had always measured up to everyone else's; but timid, introverted me, I showed it sparingly: I was a smiler. In her presence I threw back my head and laughed out loud for the first time in my life" (Spinelli, 107).

The purpose of this passage is to:
teach us to laugh.
show us Leo's shift in character.
reveal more about the Arizona setting.
learn new vocabulary.