Mordechai was talking to Dovid and giving him the rundown of how things stand at school (names were changed to protect classmates' anonymity):
Reuven is leader of the bad guys. He gets in trouble all the time. I'm the leader of the good guys. Shimon thinks he's the leader of the good guys but he's not. He walks around and shows off about how many stars he has and the other boys don't like that because he's trying to make them jealous. And Levi thinks he's so cool because he has gedolah* [sic] cards.
* Gedolim cards are collectible cards featuring Jewish religious leaders, past and present.