Uptown: Crosby Street Hotel Screening of Mao's Last Dancer
Look: Olsen is more than a skilled fashionista - she's got serious makeup moves, too. She paired thick brows with matte pink lips, a few coats of mascara and a dash of bronzer. A sleek bun gave the 22-year-old a mature, sophisticated look.

Downtown: After Party for Broadway Opening Night of "Impressionism"
Look: The actress went for a more playful style, painting on shiny red lips, pink cheeks and brown eyeshadow. Her long, tumbling tresses looked laid-back and age-appropriate on the youngest Olsen.