How to curl my hair like this?

http://www.youtube.com/watch?v=pcPYbraxRRw

how do i do my hair like the girls in this video?

i only have a curling iron because my mom has the straightener in the states with her. [i live in germany].

but my hair doesnt hold a curl to a curling iron.

any easy ideas??How to curl my hair like this?
after washing your hair put a little bit of gel in it and a defrizer and put it in a messy bun and go to sleep like that when you wake up in the morning take it out carefully and add more product in it. hopee this helps=)How to curl my hair like this?
curlers.
esmee's hair is natural..

it's messy, and looks like bed-hair. =/