Thanks for the link, sulismies.
His gestures help explain. Seems pretty straight-forward.
Ready position is with racket leg forward, weight on balls of the feet, feet about shoulder width apart, back foot turned about 45 degrees from front foot, racket held about chest high, etc.
To get to position, racket leg leads to the back, non-racket leg to the front, sometimes uses chasse, sometimes crossover step, sometimes end with a leap.
The demonstration seems very basic--his own version of technique.
From his gestures, he is probably talking about how the body should be oriented and the weight distributed. For example, when he moves to the back forehand in the first shot demo, for the final step, the back foot is in full contact with the floor and parallel to the back line, weight on the back foot with the front leg nearly straight and heel off the floor. In the scissor kick, he seems to be indicating that the follow-through of the arm should coincide with the front leg coming down, both arm and leg moving together down and forward.
What I wonder most about this demo is that he always returns back to base after every shot. This is what I was taught as a beginner, and I think most of us were (to get us away from hitting and then just standing and watching). In a real game, however, returning to base doesn't always happen because the opponent will get to the shot before you can get all the way to base and be ready. If you try to get to base, you'll be moving when the return is hit, which only works if your opponent hits it to where you're moving to.