In Chapter 3 of To Kill a Mockingbird, Atticus gives Scout some words of wisdom when he says, "You never really understand a person until you consider things from his point of view...until you climb into his skin and walk around in it." Later in the novel, Scout matures and begins to more deeply understand the words of her father. However, in Chapter 4, Atticus's words are clearly ignored.
One day after drinking lemonade, Jem decides that he, Scout, and Dill will play a new game. He calls the game "Boo Radley," and it consists of the children acting out scenes as the Radley family members. Along with various smaller roles, Scout plays Mrs. Radley, Dill has the part of Mr. Radley, and Jem takes the role of Boo for himself. According to Scout, their "melancholy little drama" continues to progress, as dialogue and other changes are added. One day, after Atticus sees their play in action, Scout decides she would like to stop playing the game for two reasons. One of these reasons is because she doesn't want to get caught by Atticus. The second reason is because earlier that day, when she rolls in the tire to the Radley steps, she hears laughing from inside the Radley house. In her mind, this proves Boo's existence.
While Scout ignores her father's words in Chapter 4, the reader sees evidence later in the story that Scout does in fact consider his words. In Chapter 26, Scout shares that she "sometimes felt a twinge of remorse" for playing the "Boo Radley" game and for participating in other activities at the expense of the Radley family. While Atticus's words may not have had much impact on her in Chapter 4, she eventually realizes that there is truth in what he says.