A crash course on the catwalk! Heidi Klum taught Howie Mandel how to walk in heels, sharing the video via Instagram. And surprise, surprise: people have some question on how the lesson came about.

Most of us aren’t born as leggy as Gisele Bundchen or with the cheekbones of Naomi Campbell. But there are things that mere mortals can do to look like they belong on a catwalk. TIME sat in on a model ...