Julia RobertsTHE LOOK Long soft waves HOW-TO Start with a root lifting spray, like Davines. Use a professional blow-dryer with a nozzle to smooth coarse hair. (Flat hair, doesn't need a nozzle.) Using a medium-size round brush, wrap sections of hair around the brush, rolling under, toward the face. Blast the hair with heat and then hold the brush for a few seconds. "The hair will form to the cylinder of the brush and give a nice wave," says stylist Guy Riggio of the John Frieda Salon in L.A. INSIDER TRICK "This classic look works best on hair with long layers," says Riggio. BUY ONLINE NOW Davines Defining Texturizer, $16; fourseasonsproducts.com.