I think I want to ask my parents to buy me an autograph book
What makes you want to get an autograph book?
I think it would be cool to collect signatures from famous characters.
Thats a pretty cool hobby to go into. Just be sure to thank your parents if they do buy it for you. You should be grateful when they go out of their way to get you something you want.
I didn't know I needed to thank my parents for anything. They should be the ones thanking me for being so great.
I'm sure you're great, but your parents might feel hurt if you don't thank them after they do something nice for you. I think you should let them know how much their gifts mean to you.