When Leo was 12, his family moved from Pennsylvania to Arizona. At his high school in his new state, Leo and his friend Kevin are the creators of their school’s popular TV program, Hot Seat. Leo is the producer of the show because he is shy, and he is much more comfortable coordinating behind the scenes than being in the spotlight. In the book, he doesn’t share much about his interests, other than his interest in Stargirl herself
“I had never realized how much I needed the attention of others to confirm my own presence.”
The phrase speaks of the fact that Leo needs validation from other people and that he is quite insecure with himself, that is why he needs the approval of other people. He also talks about how he is a person who wants everyone’s attention.