Here is what you need to do this cheat:
1. A durable rubber band
2. A massage toy (the kind that has a tripod bottom)
3. An area with black top or asphalt
Put the rubber band through the clip on the back of the pokewalker. Attach the rubber band around the massage toy. Activate the toy, leave it on asphalt, and it makes 9000 steps every hour or so. Carpet won't work and hardwood makes an annoying sound, but works. Hope this helps.

Or just attach it to the bottom of your pants leg and kick your legs in the air..