Hi dsss27,
Paul describes it in the home-study course which I just started, so it must be on the first few tapes.
I try to describe it as I understand it:
Left hand: hold the book with three fingers on the cover (thumb and index-finger on the 'inside' of the book).
Right hand: Put the index-finger on the top of the right page at the center of the book, if you move your index-finger to the outside (to the right) of the book, apply a little pressure on the page, the page will kind of curl-up and your index-finger will slide easily behind it, now you can turn the page.
As the page reaches the left-hand side, lift your thumb to 'catch' it, press it down on your index-finger and place your index-finger on top of the page.
When you check the movement of your thumb and index-finger, it's like they're walking (just as Paul describes it).
Hope this helps,
Hans