If you have the ability to naturally curl your hair, meaning you have naturally wavy or slightly curly hair, it is fairly easy.
Originally Posted by got2luv'em
the bold hairtypes above can usually get away with brushing and blowdrying to get the "straight hair with curled ends" look or just have soft loose curl types. i'm pretty sure this is what they were talking about, since i know several wavy-haired and looser curly-haired girls who get away with this. JMO

and i can see both sides of the brush debate. it depends on your hair... we're all different...
Lady Libra
i stick with the description "OS thready thick"

my curly fro now is at collarbone when straightened.... basically the length i had when i started transitioning! hooray for growth!!! =)