MoMA provides audio and visual inspiration on summer Saturdays at its Queens outpost, P.S. 1. The Warm Up is, quite simply, a spectacular public party. It grants access to fine exhibitions; incredible D.J.s; an expansive outdoor dance floor; and essential but austere food and beer. Observing the crowd during a recent visit from Minnesota, my best friend admitted, “Wow, people in New York really do have cooler sunglasses than people in St. Paul.” Yep, that might be true.