Tips on how to use hot rollers to curl hair?

I'm extremely new to this.


My hair is naturally frizzy and out of control so I usually just straighten it.


I want to go for a new look so I decided to curl my hair.


Any tips on how to get the best results with hot rollers?Tips on how to use hot rollers to curl hair?
http://www.youtube.com/watch?v=tHLkGXgkHv4