Tango dancing at Alvin’s is a respite from the real world: A cozy, elegant space graced with vibrant artwork where you can bring your dance partners or meet new ones. Between tandas have a cool drink at the fully stocked bar or order a snack or a meal from the restaurant menu. Argentine tango dancing every Tuesday: Class led by Carolina Escalona and Steve Curlen from 7 to 8 pm, followed by Argentine tango dancing with music by DJ Carolina until 11:30 pm. $20 cover charge for class and milonga, $15 for just the milonga. Sponsored by Westchester Ballroom. RSVP 914-773-7773.