 Friday night, it's real people, not actors, with Boys Go to Jupiter and Kamasaki Corporation at the Knitting Factory at Baker Falls 101 Avenue A in the city. 21 to get in, 7 p.m. start. Also Friday, celebrating Arthur Russell with Wordless Orchestra, Love Injection, and Francois K. at the Prospect Park Bandshell. That's Prospect Park West and 9th Street in Park Slope, Brooklyn. All ages, 6 p.m. start Friday.