Shiatsu is really hard to explain in plain terms to someone who has never experienced is ... Of course if you have prior experience, you don't need my explanation.. Yes I get it, but this simple video of a basic session should be able to bridge the gap beautifuly.
Each session is tailored to your specific state and condition and a s such is unique. However, having said that, it, the video, illustrates a typical session well. It's by a UK school of Shiatsu. Enjoy.