Apply styling mousse to damp hair, using your palm as a measuring guide, and evenly distribute it along the hair shaft. Styling mousse will add hold and can help achieve better results.
Lift your hair up with your fingers and move the diffuser up to the ends, motioning the diffuser to the scalp in circular movements. Make sure the blow-dryer speed is on low and try not to completely dry the hair off. Leaving a little bit of moisture will allow the hair to dry naturally.
To finish, apply a minimal amount of hairspray from an arms length distance to the top, sides and back. Take care not to use too much or you will end up with a white, flaky residue which looks like dandruff.