It's a "bare-bottomed" method, meaning that for three months after you initiate potty training, your child will need to be naked below the waist.
Here is a summary of the two-day method of potty training (or three-day method, whatever you want to . Except, naked in the “safe area” and going to the potty.
Get your kid naked, in an oversize t-shirt or big kid underwear and explain there is no diaper to catch the pee-pee or poop, so he has to put it in the potty.
Since the first two days of naked toilet time had gone so smoothly (only a couple accidents), we designated day three to be Underwear Day.