Answer:
At the beginning of the story, Greg Ridley is in a bad mood and is dreading the lecture from his father, knowing what was going to happen.
At the end of the story, Greg is anticipating a lecture from his dad once again, but this time, he is happy and smiles at the thought of it.
This change occurs because Lemon Brown tells Greg about how he lost his own son, and that the lessons and things a father gives a son should be treasured. Greg realizes this is true, and it shows by how his behavior changed at the end.
