Rebecca GayheartTHE LOOK Straight low ponytail HOW-TO With hair that you've blown straight or flat ironed, tease the crown and lightly mist with flexible hold hair-spray. Create a center part and pull hair back and secure behind the ear with a clear hair band. INSIDER TRICK "This style works best with hair that hasn't been recently washed," says stylist Joaquin Hortal. For even more texture, apply a dry shampoo to roots and massage in. BUY ONLINE NOW Rene Furterer Naturia Dry Shampoo, $23; www.dermstore.com.