Stuck? The next step will appear eventually.

Just stand there until someone puts it in your path.

This was inspired by a rather amusing display of human Lemmings (the game) tonight. I set up some aerobic steps for the kids to walk up and down and they started walking up them before I'd finished the down side. They just kept walking up and piling on the steps, unable to turn around because other kids were behind them, and I guess stepping off the side never occurred to them. I finally got the rest of the steps set up and it was like the flood gates opened as they all came pouring down the other side.