[header] How to curl hair using a hot air brush [title] Wash your hair with volumizing shampoo and conditioner. [step] Curling your hair will be much easier if you prepare your hair by using volumizing products, especially if your hair is naturally straight. These products will give your hair a boost of volume and enhance your hair's texture. 
[title] Apply volumizing products to your hair. [step] Adding volumizing products to your hair will help it hold the curl and bounce that you'll get from using a hot air brush.