How do you request an autograph from a celebrity?

[JustinLongFanGurrl27]

I don't have a picture with the actor or anything like that so I was wondering what I ask the actor to sign and what I should say in the letter i write and all of that....?

Any suggestions, tips,information, etc?? Please post them here!!

 

[stevenrockwell21]

caught his attention!
keep yelling his name and say i want an autograph!!!!!!!!!!!!! autograph!!!!!!!!!!! dont stop until he noticed you.