Natalie PortmanTHE LOOK Classic French twist HOW-TO If you start with freshly washed hair, stylist Michael St. Germain recommends adding volume spray before you blow-dry to add body. If hair is dirty, add a styling spray for extra texture. Then simply pull hair back just above the nape and twist upward and into itself, tucking the ends in at the top. Place pins in the twist to secure it. INSIDER TRICK This style looks best with a side part and a panel slicked across the top, or bangs pulled to the side. BUY ONLINE NOW Goldwell Trendline Natural Flexi Whip Flexible Mousse, $16; beautysak.com.