The personalities of Jem and Scout are actually very similar in To Kill a Mockingbird. Jem shows a hot temper on more than one occasion in the novel (though he is not as quick-tempered as Scout). He destroys Mrs. Dubose's camellias after she insults Atticus, and he becomes very angry after the guilty verdict is revealed in the Tom Robinson trial. Jem is very sensitive--much more so than Scout. He shows this side when he finds out that Nathan Radley has lied to him about cementing the knothole, and he shows them again after Mrs. Dubose's death. He also shows his heroism when he stands by Atticus at the jail in the face of the lynch mob, and he tries to fight off Bob Ewell to save his sister after the Halloween pageant. He is also a bit of an introvert, since he has few (if any) close friends, and he loves to read. He also loves sports (there are many sports references in the novel) and he goes out for the football year his first year of high school.