So visit your local comic book store (I'm not sure if other bookstores are participating) and pick up a new book to read absolutely free. Some stores will also have other special events, so be sure to check their websites. The whole idea behind Free Comic Book Day is to promote literacy, encourage people to shop locally, and support artists and authors. But most importantly: it's about FREE COMIC BOOKS! Who doesn't like free stuff?
You don't like free stuff? You're weird.