“So many people are shut up tight inside themselves like boxes, yet they would open up, unfolding quite wonderfully, if only you were interested in them," Sylvia Plath observed. For many years, Boo has been locked up in his home for a mistake he made in his youth. Unable to communicate like other people, Boo instead tries to make friends with Scout, Jem, and Dill by leaving little gifts for them. His small acts of kindness are the measure of his true, gentle nature. Be sure you understand Boo's past and present by taking our exclusive, interactive quiz on the character of Boo Radley in To Kill a Mockingbird. Rank your score against others and see how you compare. What have you got to lose? Nothing! What do you have to gain? A better grade!