“Little ones!” Justin Gelband shouts over the smell of Diptyque Baies candles. His directive could be an endearing call to the group of glossy, ponytailed girls dripping with sweat, but is instead a request for smaller movements. “Small squats!” he urges, showing us how to do the barest, almost imperceptible squat. It’s the mini-Me, the Keebler Elf of squats. And it’s these little moves that have sculpted the lean, non-bulky physiques of Anne Hathaway, Anne V, Miranda Kerr, Karlie Kloss, and Irina Shayk. With ModelFit, a new fitness boutique in Noho, opened with stylist turned holistic nutritionist Vanessa Packer, the non-famous are learning just how effective little ones can be.