THE LOOK Thick, long waves HOW-TO Comb volumizing mousse or spray through wet hair, then blow-dry with a large round brush. Curl hair in a 1 ½-inch iron, and hold just for a few seconds, then unravel. INSIDER TRICK "Curl the hair from the crown down," says stylist Juan Carlos Maciques. "By holding it for only a few seconds you get an uncontrived wave, not a curl." BUY ONLINE NOW Cristophe Beverly Hills Volumizing Spray Tonic, $6.39;www.cvs.com.