Bend arms to 90 degrees. This makes the swing quick and compact—your feet have no choice but to keep up! Trace an arc from your waist to your chest as you swing. “Your thumb should brush against your waistband as your elbow goes backward,” Fenton says. This ensures that your arms propel you forward, not flail aimlessly. MORE: 6 Moves That Target Stubborn Cellulite Keep elbows in and don’t let hands cross past the middle of your chest (in front of your sternum). Too much side-to-side motion drags down your pace. Check out Walk Off Weight and try the interval walking program that can help you shed pounds three times faster than regular walking.