Kristen Johnston, best known for her role on “3rd Rock From the Sun,” has a new man in her life whom she appears to have picked up at Kinko’s. Johnston, who once dated Ryan Reynolds, brought model-esque Piero Righetto as her date to Tuesday’s NYClass gala at Edison Ballroom. “We are friends,” he told us in a thick Italian accent, adding, “Super-friends.” Two weeks ago, Righetto said, “We met at this kind of office where you can print stuff. This kind of small store, what do you call it? I was printing, she was doing her stuff, and we met.” Kinko’s, perhaps? “He had his arm wrapped around her at the end of the night,” says a spy, adding, “It seemed very romantic.”