The Weekend Guide

pi(e) day!

Live like the upper crust.

Pi(e) Day
Join Nothing-in-the-House blogger and baker Emily Hilliard for a homemade party fueled by her obsession. Nosh on savory and sweet varieties in support of Common Good City Farm.
Why: Walk the route of Pi for the chance to win a treat.
When: Tonight, 6-8:30 p.m.
Where: The Dunes, 1402 Meridian Pl. NW (202-436-9118). Suggested donation is $7.

Embassy Chef Challenge
Mingle with ambassadors and food luminaries like Carla Hall and Duff Goldman as ten toques battle for the title of best hors d’oeuvres; plus, an open bar and silent and live auctions.
Why: Monies raised support the artsy efforts of Cultural Tourism DC.
When: Tonight, 7-10:30 p.m.
Where: Ronald Reagan Building and International Trade Center, 1300 Pennsylvania Ave. NW. Tickets ($250) at embassychefchallenge.com.

Environmental Film Festival in the Nation’s Capital
Bottled water, blue dye, and a bonobo named Beny are among the starring subjects of this year’s crop of 100-plus movies.
Why: Learn locally. Act globally.
When: Thru Mar. 24.
Where: Schedule, locations, and tickets (free-$11.50) at dcenvironmentalfilmfestival.org.

Hello, Dolly
What: Pump up your matchmaking muscle with a front-row lesson from Dolly Levi, who bewitches the crusty millionaire who hired her to find him a wife.
Why: Advice is cheap. It’s things that come gift wrapped that count.
When: Thru May 18.
Where: Ford’s Theatre, 511 10th St. NW (800-982-2787). Tickets ($18-$77) at ticketmaster.com.

Irish Whiskey Cocktail Seminar

What: Toast St. Paddy with a master class from professional whistle-whetters like Gina Chersevani and Rachel Sergi.
Why: You can do way better than a Shamrock Shake.
When: Sun., 6-8 p.m.
Where: Occidental Grill & Seafood, 1475 Pennsylvania Ave. NW, b/t 14th & 15th Sts. (202-783-1475). Admission ($45) in advance by PayPal.

Mussels and Beer Tasting

What: Scarf unlimited PEI mussels, potato chips, wings, and brews.
Why: Here, no one laughs at that napkin tucked under your chin.
When: Fri., 6-9 p.m.
Where: Sea Catch Restaurant & Raw Bar, 1054 31st St. NW, at M St. (202-337-8855).

Photo: Grant Harder / Getty Images

The Dunes
1402 Meridian Pl NW
bt N & 14th Sts NW
Washington, DC 20010
Occidental Grill & Seafood
1475 Pennsylvania Ave NW
bt 14th & 15th Sts
Washington, DC 20004
511 10th St NW
bt E & F Sts
Washington, DC 20004
Ronald Reagan Building and International Trade Center
1300 Pennsylvania Ave NW
@ 13th St
Washington, DC 20460
1054 31st St NW
@ M st
Washington, DC 20007