This weekend, don’t go into the light.

SEE
Noir City 5 Film Noir Festival
What: Ten days of rare celluloid classics from the era of true grit.
Why: It was a dark and stormy night.
When: Thru Feb. 4. Starts Fri., 7:30 & 10 p.m.
Where: The Castro Theatre, 429 Castro St., at Market St. (415-621-6120). Tickets online at brownpapertickets.com.

DO
Giant Group Hug
What: Join in a color-coordinated performance/video piece. Wear bright hues.
Why: Hug it out, bitches.
When: Sat., noon.
Where: Sharon Meadow, Golden Gate Park, Kezar Dr., at Waller St. For more info, e-mail info@michelleblade.com.

BUY
Abigail Morgan Sale
What: Up to 80 percent off Splendid, Citizens of Humanity, Ella Moss, Milly, C&C, and more.
Why: Sale away, sale away, sale away.
When: Thurs., 11 a.m.-7 p.m.; Fri. & Sat., 11 a.m.-6 p.m.; Sun., noon-5 p.m.
Where: 1640 Union St., b/t Franklin & Gough Sts. (415-567-1779).

Maneater Threads and Mingle Sale
What: Up to 75 percent off designers like Mara Hoffman, Jenny Han, and Diane Medak.
Why: Watch out, boy. She’ll chew you up.
When: Fri.-Sun., 11 a.m.-6 p.m.
Where: 1815 Union St., at Octavia St. (415-674-8811).

EAT
Brunch at B Restaurant & Bar
What: Dine al fresco on Straus yogurt with Nilla wafer biscotti and almond granola — or a juicy Angus burger.
Why: Sunshine on your shoulders.
When: Sat. & Sun., 11:30 a.m.-4 p.m.
Where: 720 Howard St., b/t 3rd & 4th Sts., on top of Moscone N. (415-495-9800).