A little astro-inclined birdie mentioned Mercury is retrograde. That means serious decisions are a no-no, and a frivolous weekend is in your future.

DO
Barnsdall Art Center
What: All the art classes you’ve ever wanted to take, from oil painting to stained-glass making.
Why: Night school is the new nightlife.
When: Registration starts Sat. at 8:30 a.m.
Where: Barnsdall Art Park, 4814 Hollywood Blvd., b/t Vermont and Edgemont Sts., Los Feliz (323-644-6295).

BUY
Alvin Valley Sample Sale
What: 50 to 80 percent off famously fanny-flattering spring and summer styles.
Why: Real women have curves.
When: Thurs.-Sun. noon-6 p.m.
Where: Le Meridien, 465 S. La Cienega Blvd.,
b/t W. Colgate Ave. and Clifton Way, Beverly Hills (310-247-0400). Ask for the Alvin Valley suite.

EAT
Ole! Tapas Bar
What: New lounge serving small plates, sangria, and orange blossom beignets.
Why: An absolutely no-bull list of Spanish wines.
When: Fri. & Sat. 5 p.m.-midnight.
Where: Ole! Tapas Bar, 13251 Ventura Blvd.,
b/t Longridge and Fulton Aves., Studio City (818-986-3190).

HEAR
What a Pair! 3
What: Deborah Gibson, Taylor Dayne, and others perform to benefit the Revlon/UCLA Breast Center.
Why: Baby, you can duet, duet right.
When: Fri. at 8 p.m.
Where: UCLA’s Royce Hall, 405 Hilgard Ave., at Wyton Dr., Westwood.

SEE
Side Streets & Back Alleys
What: Seventh Annual Festival of Film Noir at the wicked classic Aero Theatre.
Why: True pulp fiction.
When: Fri. through Apr. 24.
Where: Aero Theatre, 1328 Montana Ave., at 14th St., Santa Monica (323-466-3456).