Keep your shoulders relaxed, your elbows tucked to your side, your arms bent at about 90 degrees, your hands loose and easy. As you build up to it, allow your hip to extend forward with each leg. It sort of feels like your legs start at your waist. Wear a hat if you're embarrassed. Check Your Posture.
Good form makes for great results.
Wear Good Walking Shoes. Treat yourself to a pair of quality walking shoes, with enough cushioning and support and room in the toebox to keep your feet happy and your body less prone to injury. When your current walking shoes begin wearing out, replace them with a new pair. If you've been physically inactive, are older than 35, have experienced heart or breathing problems, are overweight or have experienced other health problems, it would be advisable to get a physical checkup before starting this program. Many fitness clubs offer checkups, as do most health clinics and general practitioners.