Assert your independence.SEEWearable: Alex Chaney & Genne LaaksoWhat: Delicate and dangerous jewelry crafted from razor blades, syringes, and X-acto knives offer edgy and uncomfortable commentary on the social practice of adornment.Why: Look sharp. When: Thru Aug. 1. Opening reception, Thurs., 5-8 p.m.Where: Punch Gallery, 119 Prefontaine Pl. S. (206-621-1945).SKATESoul Food Rollerskating Jam What: Take your own four wheels and boogie down to live music by Kissing Potion and the soul/funk/R&B stylings of DJ Barbarella.Why: You’re a roller girl.When: First Fri. of every month, 10 p.m.-2 a.m.Where: Re-Bar, 1114 Howell St. (206-233-9873).PICNICCapitol Hill Independence Day Community PicnicWhat: A free party with music by Katharine Hepburn’s Voice, Picoso, and others, plus a canine-human look-alike contest and patriotic tie-dye instruction. Why: Molly Moon’s root beer floats, Wandering Wieners hot dogs, and treats from Via Tribunali and Caffe Vita.When: Sat., noon-5 p.m.Where: Cal Anderson Park, 1635 11th Ave.SINGKaraoke Challenge What: Record a rendition of your favorite tune set to your own karaoke video and compete to be the best or quirkiest crooner.Why: Just duet. When: Entries due July 31. Screening of winning films, Aug. 11, 9 p.m.Where: Northwest Film Forum, 1515 12th Ave. (206-829-7863).DRINKSeattle International Beerfest 2009 What: A weekend of suds sampling with 150 brews from fifteen countries provides ample opportunity to show off your mug.Why: Grab your best Bud.When: Fri. & Sat., noon-10 p.m.; Sun., noon-7 p.m.Where: Seattle Center, 305 Harrison St.