"I'm not looking for your treasure," Greg answered, smiling. "If you have one."
"What you mean, if I have one," Lemon Brown said. "Every man got a treasure. You don't know that, you must be a fool!"
"Sure," Greg said as he sat on the sofa and put one leg over the back. "What do you have, gold coins?"
"Don't worry none about what I got," Lemon Brown said. "You know who I am?"
"You told me your name was orange or lemon or something like that."
—“The Treasure of Lemon Brown,”
Walter Dean Myers
Think about Greg’s dialogue. What do readers learn about Greg from his words?