Thank you !!!
Actually I used bobby pins to do this on my hair...
On dry hair, I apply a styling mousse and comb them.
I separate my hair into sections.
Take one, spray it. Roll. And pin it. Like if I had rollers.
I do this for all of them. I spray again.
And I stay like that about 3 hours (that's for me, it depends on your hair actually)
I take of the pins. Don't touch too much the curls... And spray.
And done !!!