This will require you to be on the floor on your back to try this out in real time. You will need either a firm/hard chair to support your lower legs, or be able to put your feet on a wall, with hips and knees bent at roughly 90 degrees. This won't be at all strenuous, but wear clothing that is not restrictive. And you'll need to put your computer/device in a position that you can watch the demo and try it out for yourself. As always, contact me if you are puzzled and want more specifics.  There will be time for questions.  The zoom meeting link will be in the automated email you'll receive upon RSVPing.