I know that this works on the Georgia Pacific enMotion, but it might work on others too.
Step 1: Things Needed
And you will need to be in need of more paper towel than it dispenses
You will also need a hand.
Step 2: Tug on the Paper Towel
The red light should be on.
If you wave your hand over it again, nothing happens.
But if you gently tug on the paper towel, the machine thinks that you ripped the towel off, and the light should blink.
Step 3: Wave Your Hand Again
You can go back to step 2 if you want even more paper towel, but you would only be killing more trees.
Also, if the bathroom had a choice between paper towels and a air dryer, just use the air dryer.