You might be surprised, but a lot of people are actually afraid of the moving walkways, escalators, moving stairs, etc. For some reason I see lots of 'em whenever I land in Atlanta; there's a set of escalators that you have to take up to the terminal proper, once you've gotten off the little gate-train, and there's often someone who's gotten in the queue then had to stop a minute before actually getting on the escalator. You can watch them almost counting the steps as they go by and working up the nerve to step on.
I seriously doubt that any of these folks will be walking on the moving steps!
If you're not used to people-moving-technology and don't have a lot of experience getting around airports (they're crowded and can be confusing), I'd imagine the moving walkways are the perfect place to catch your breath and gather your thoughts.

As long as you stand to the right!