Make straight hair wavy by spraying dry hair with spray gel, twisting sections of hair until they are tightly coiled and pinning them close to the scalp. Spray the clipped hair with hairspray, and wait 15 minutes. Release the clips, and comb the waves into place with your fingers.
The number of sections defines the tightness or looseness of the final waves. For hair of average density, four sections make loose, natural-looking waves. Twist each section in the same direction for the most natural results. Avoid using a brush or narrow-toothed comb on the final waves to maintain the look.