Get outta town. Or don’t. SEE National Museum of Crime & Punishment What: Exhibits on safe cracking, Wild West outlaws, lie detectors, and more at the brand new interactive museum. Why: It’ll catch your attention. When: Opens Fri. Daily, 9 a.m.-7 p.m. Where: 575 7th St. NW, b/t E & F Sts. (202-393-1099). Shakespeare Free-for-All What: Bring a picnic to free outdoor performances of the brooding Hamlet. Why: Free to be, or not to be. When: Thru June 1. Tues.-Sun., 7:30 p.m. Where: Carter Barron Amphitheatre, 16th St. & Colorado Ave. NW (202-334-4790). Ticket info at shakespearetheater.org. BUY Denim Bar Party What: Beer, wine, mixed drinks, and BBQ, plus 20 percent off all Nudie jeans. Why: Just sidle up. When: Sun., 6-10 p.m. Where: 1101 S. Joyce St., Arlington (703-414-8202). Nanette Lepore Opens What: The beloved designer opens her first local shop tomorrow with frocks, jackets, shoes, and more. Why: Oh, l’amour. When: Mon.-Sat., 11 a.m.-7 p.m.; Sun., noon-6 p.m. Where: 5449 Wisconsin Ave., Chevy Chase (301-657-1515). Artomatic Open Screen What: Show your recent videos during the first-come, first-show screening at the multimedia arts extravaganza. Why: Strut your stuff. When: Sat., 11 p.m.-2 a.m. Where: 1200 1st St. NE, at M St. (202-607-0879).