* Bend your elbows. This will cause your arms to swing faster which in return will help your legs to move faster.
* Keep your stride short. Don't take long strides that feel awkward.
* Think heal-to-toe. Push-off with your heal. Toes should leave the ground last.
* Keep your abs pulled in and tight.
* Include interval training walks that include periods of very brisk walking followed by slower, recovery times.