Terpsichorean Curiosity

Why do fashion models walk that way?

But not every model takes walking lessons; some have a natural sense of presentation. "It depends on where the models are from," according to Andrew Weir, a New York casting director. "If they're from Brazil or South America, the walk is innate. The other girls have to watch the Brazilians for a season or two until they catch up."

There are a few walking styles. "If you say to the girls 'Do a Versace walk,' they know what that means—a va-va-voom, shake-it-like-you-might-break-it walk," says Weir. " 'Street' means no swish. It's strong, like the way people walk down a New York street." Most shows now use a near-natural street walk, described by Weir as "'Street' plus a little bit more." That means a pretty natural stride with no hands on hips or posing. But the walk is still slightly exaggerated: Some extra swagger makes skirts swish dramatically and gives tailored looks a bit of extra power.

Although people don't like to believe it, models are not big dieters. They are blessed with fast metabolisms.