Rachel Bilson is a true trendsetter. “I’m constantly trying new things and experimenting, so I never really settle on one style,” says Bilson, who appears opposite her fiancé, Hayden Christensen, in this month’s romantic drama New York, I Love You.

“By the time I figure out how to define my look, I’m usually ready to move on to something else.”

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Case in point: The 28-year-old actress wowed everyone at the Lucky shoot when she showed up looking flawless in a fashion-forward silky Helmut Lang jumpsuit and simple leather flip-flops. “The trick is rolling the legs so you see some ankle,” she explained.

The November issue of Lucky hits newsstands on October 6th.