Some people say they are big readers. That they're so into books it's not funny. However the only way to tell is if they,
1): Suddenly gasp when something exciting or unexpected happens in the book.
2): Start talking to the book because that's not how they want the book to go.
3): Hurl the book across the room when one of their favorite characters dies.
4): Bawl at a sad part (like when someone someone else loves dies)
5): Laugh hysterically at some parts in the book.
Copy and paste this if you are one of these people.