If you find yourself in a narrow East Village bar adorned with red lights, a precariously perched piano and a sign reading, “Resist, Persist, Keep Dancing,” you’ve stumbled into Alan Cumming’s pride and joy. “Club Cumming started in my dressing room because I wanted the party to come to me,” the actor says about the bar that he opened two years ago. “I really do love encouraging people to have fun.” Cumming remembers how starring on “The Good Wife” and his second run on Broadway’s “Cabaret” kept him too busy to socialize. ”I think I’m really good at it,” he says, pausing to laugh (a Cumming tic as frequent as it is endearing). “And alcohol obviously helps.”