Wear it well.

DRESS
Seersucker Social
What: Dandies and Quaintrelles and Holly Bass’s leisurely crosstown bike ride — more performance art than exercise — ends with lawn games and drinks.
Why: Show off your high style in a vintage-inspired outfit.
When: Sat., 3:30 p.m.
Where: Ride, starting location is e-mailed to participants. Social, Hillwood Estate, Museum & Gardens, 4155 Linnean Ave. NW, at Tilden St. (202-686-5807). Tickets (ride, free; social, $20) online at eventbrite.com.

LEARN
Nerd Nite DC
What: Three riveting presentations on geeky subjects broken up by musical interludes from Hey Arboré.
Why: Mad science topics (How Genetically Modified Animals Advance Biology and Medicine, Derivatives: the Gremlins of Wall Street, and Sexy Apes and Other Primates: Fun Facts and Tidbits).
When: Sat., 6-9:30 p.m.
Where: DC9, 1940 9th St. NW, b/t T & U Sts. (202-483-5000). Tickets ($10) online at dcnine.com.

SCORE
Soccer in the Circle
What: Hang out right in the middle and watch World Cup matches on big screens.
Why: Free soccer balls, dance performances organized by the South African embassy, and more.
When: Sat., 7:30 a.m.-5 p.m.
Where: Dupont Circle. Admission is free.

TOAST
Biergarten Haus
What: A traditional German beer garden with 30 tap and bottle varieties ($6-$19) and giant outdoor communal tables.
Why: Menu options like schnitzel and bratwurst, plus live World Cup games, folk bands, and sing-alongs.
When: Opens Fri. Mon.-Thurs., 4 p.m.-1 a.m.; Fri., 4 p.m.-2 a.m.; Sat., noon-2 a.m.; Sun., noon-1 a.m.
Where: 1355 H St. NE, b/t 13th & 14 Sts. (202-388-4053).

Photo: Alek Naz Freidouni