The owners of Rockbar have earned a loyal following over the years with La Rumba, one of the city’s friendlier nightclubs. It’s best known for the long-running Lipgloss, a Friday night free-for-all where the tunes range from ’80s rock to techno, the cover charge is nil before 10pm (after that, it’s a measly $5), and PBRs go for $2.  On Saturdays, live salsa is the draw, complete with free lessons, but the genre is a focus on other nights as well: from 1opm to 11pm, also known as Salsa Hour, DJs spin merengue, cumbia, and more. Easygoing as La Rumba is, it does enforce a dress code: leave your shorts, sports gear, and flip-flops in your closet.