Here's Hayden doing an assortment of signs. "Bus" is taking two fingers and pretending to pull down on the cable for your stop. "Toys" is making a "y" with your hands (putting out your thumb and pinky) and shaking it. "Book" is like you're opening a book. Hayden does, and always has done, his book as opening outward toward us rather than opening it toward himself. He's just silly like that. ;) "I Love You" can be signed by putting our your palm and then closing the middle and ring fingers so that only your pinky, index and thumb are up. That means "I Love You."