Spray your hair with gel. It should be slightly damp after spraying.
Flip your head over and take handfuls of hair in your palms. Scrunch these handfuls of hair by simultaneously lifting them up toward your scalp and closing your hand. This causes the hair to bend into waves and curls. Scrunch, scrunch, scrunch and scrunch some more until you've worked all your hair.
Flip your head back upright. Check out your handiwork. If you want a little more definition, take individual curls and twist them around your finger. Coil them by spiraling your finger around each curl for a tighter, more defined curl.
Flip your head back upside down and let your hair pile into the diffuser attachment of the blow dryer. Lift the diffuser up toward your scalp so that the curls are just loosely set in the diffuser.
Blast the curls with heat. This will dry the gel and lock in the curls. Don't overdo the heat -- use just enough to set the curls. Once your hair is dry, flip your head back up and check out your gorgeous mane.
Spray your curls with hairspray after styling to give them a little extra hold.
This technique works best on hair that already has some waves or curls.