When Suzanne Fetting sees women shuffling down sidewalks in heels way too high for them, it makes the confidence coach crazy. "Instead of lifting their feet up and planting them gracefully, they do a little thing called shuffling," says Fetting, a former runway model. "It drives me nuts." And if they aren't dragging their feet forward, they wear the heels the way they wear running shoes. "They don't have that sexy sway that you get when you activate the hips," she says, adding you have to do that if you wear five-inch stilettos. Fetting, who'll be speaking this weekend at...