How do you do this to your hair! with a waiver tool or curling iron tool?

http://media.onsugar.com/files/upl1/20/202586/28_2008/springsummer-catwalk-sue-stemp-wavy-hair-getty.larger.jpg



that is the picture url.

I want to do this to my hair, but i can't figure out how they do it!!!! helpHow do you do this to your hair! with a waiver tool or curling iron tool?
get a crimper or sleep in braids :)How do you do this to your hair! with a waiver tool or curling iron tool?
sleep in french braids!