Shake it off; shake it off.
Girl Walk All Day Premiere
What: The 71-minute film, set to the new album (All Day) from mix-master Girl Talk, follows three dancers through subway cars, hotel lobbies, department stores, and other recognizable city locales.
Why: An audiovisual installation by Joshua Light Show kicks off the postviewing, 1,000-person dance party led by Mister Saturday Sound.
When: Tonight, 9 p.m.
Where: Brooklyn Masonic Temple, 317 Clermont Ave., at Lafayette Ave., Fort Greene. R.S.V.P. list is closed, but the first five readers to email email@example.com with their full names get a pair of tickets. Admission is free.
Designer Holiday Pop-up
What: Browse discounted clothing, jewelry, and accessories from twenty-plus designers (Dusen Dusen, Lauren Manoogian, Gretchen Jones) while savoring treats from S’more Bakery & Cafe.
Why: Thomas IV Joanie bucket bag ($250, reg. $495), Brook&Lyn’s double roped necklace ($65, reg. $220), and the Deneuve cape from Alexandra Grecco ($310, reg. $400).
When: Sat., 11 a.m.-5:30 p.m.
Where: 508 W. 26th St., at 10th Ave., 5th flr.
A Cookie Decorating Party
What: Invite your baked goods-loving pals over for a night of festive cutters, snazzy sprinkles, spiked frosting, and more jazzy details for the little bites.
Why: If you don’t feel like breaking out the mixing bowl, choose from 37 ready-made delights.
When: Supermarket ones just won’t cut it.
Where: Online at dailycandy.com.
JJ Eyelashes Soho Opens
What: Jam out to your iPod as expert technicians transform you — lash by lash — in time for the holidays (they last three to six weeks). The foot massage during application is a bonus.
Why: Pick from various lengths and curls, so you don’t wind up looking like Betty Boop (unless you want to).
When: Mon.-Fri., 10 a.m.-8 p.m.; Sat., 10 a.m.-7 p.m.
Where: 41 Wooster St., b/t Grand & Broome Sts. (212-966-1160). Cost is $120-$150.
Lulu Frost Sample Sale
What: If 25 percent off all the local designer’s collections (including most recent styles) doesn’t make you jolly, the whiskey cocktails will.
Why: Giftable crystal quill and navette earrings, cut-steel bracelets, and heirloom necklaces. Plus, get styling tips from Lisa Salzer herself.
When: Today, 4-8 p.m.
Where: 12 E. 20th St., at Broadway, 2nd flr. (212-965-0075).
Gasoline Alley Coffee Opens
What: Follow the light into the rustic, greenhouselike nook for Intelligentsia coffee ($2-$4) and accompaniments from Ceci-Cela.
Why: Swap your usual cup of joe for ’buch on tap ($5) from Kombucha Brooklyn, or purchase a growler ($12) for a home supply of the green, black, and white tea mix.
When: Mon.-Fri., 7 a.m.-6 p.m.; Sat. & Sun., 9 a.m.-6 p.m.
Where: 331 Lafayette St., b/t Bleecker & Houston Sts.
What: A repurposed shipping container decked with hundreds of hand-cut paper snowflakes makes for the perfect photo op (BYO camera) to capture family, friends, and pups in the holiday spirit.
Why: Snap one with the big guy himself and give thanks for his updated red suit, designed by Sylvia Heisel and Scott Taylor (Post Modern Production).
When: Thru Dec. 24. Daily, 11 a.m.-5 p.m.; Santa on weekends only.
Where: Dekalb Market, Albee Square, at Willoughby St., Fort Greene. Admission and photos are free.
Photo: Courtesy of Jacob Krupnick Productions