THE LOOK Long smooth waves HOW-TO At night, after washing hair with a volume-enchancing shampoo and conditioner, towel dry hair for 10 minutes. Apply thickening spray and run fingers through hair, but do not comb. Split hair into sections and twist each section before rolling it around a foam roller. In the morning, let rollers out and gently separate curls. Use a curling iron to quickly fix any tweaks. INSIDER TRICK Split hair and curlers to the sides so you can sleep easily on your head. BUY ONLINE NOW Scunci Foam Rollers, $10; walgreens.com.