Looking at the charts on this web-site is a good way to learn. If i can point out to you that in the Foreward Walk under the heading of Mid Stride you will find that the same step on a Backward Walk is identical. In other words if you froze at the extent of your stride you could be going either backwards or foreward. Sometimes just to learn this very small point early in your dancing career can be helpfull Pay particular attention to the heels and the toes of both feet and where the weight is situated. No nodding backwards or foreward. See if you can comfortably do this with an extended hold, one going backward the other foreward ,all slows, and again don't nod