A rare but boisterous black-leathered-biker eruption over by the 50-cent pool tables sends the timid scattering toward the bar, but seasoned Big Easy patrons look up to ensure no bottles are flying in their direction and continue their conversations, which are not always easy to hear over the R&B that throbs from the tired jukebox. Tattooed patchworks that are the arms and legs of bartenders move fast to keep up with a thirsty crowd, from loudmouthed Creodonts, aging hippies, a gaggle of middle-aged women enjoying girls night out, twentysomething investment bankers in faux-funky after-hours attire and a silver-haired man tap, tap, tapping the screen of a video poker game. For a snapshot of social strata, visit the Big Easy Social and Pleasure Club any night. Conversation comes easy; drinks are reasonable. Dogs make occasional appearances at the heels of their owners, stopping appreciatively to lap up the attention of strangers who coo in universal dog-adoring exclamations. Weekend musical entertainment comes for a modest cover. But at the Big Easy Social and Pleasure Club, the best entertainment is every night, and it's free.