Attach the hair diffuser to the end of the blow dryer. Most diffusers fit easily onto the end of standard hair dryers. You simply push the diffuser down onto the dryer until it is firmly in place.
Place the diffuser on top of your head, focusing on the roots of your hair.
Turn the blow dryer on and begin drying your hair. It's best to keep the hair dryer on low or medium power when using a hair diffuser. High power releases too much intensity for the diffuser to be completely effective.
Move the diffuser in circular motions around your head . This will help to distribute heat evenly and add volume to your roots while drying your locks.
Put the diffuser at the ends of your hair, allowing air from the hair dryer to blow on the rest of your hair. You can encourage your curls by moving the diffuser up, thereby scrunching your hair as you dry it.
Turn your head upside down and focus the diffuser on the roots of your hair. This will give your hair even more lift and volume at the roots.