Greg also has a high opinion of himself, as he believes that he is surrounded by idiots and that one day he will achieve greatness. He can be, and sometimes is, nervous over certain things that may not be a big deal for adults but is absolutely paramount for other kids. His "best-friend" is Rowley Jefferson, who he says he took under his wing. He's a big fan of video games and partying, but is a wimpy and cowardly kid, often portrayed as lazy. He's shown to emphasize words with capitals.