The kbs and the Zaus show in your Headbanger course how to properly shake your head. The course offers a lot for people who are not really familiar with it yet, starting with the basic position, offers important tips before starting, shows the movements (movement sequences / lessons - including animations) and helps with The day after - the day after that.
For example, an area of approx. 0,75m2 is recommended and, among other things, it is shown how to deal with Pogern correctly:
«In order to be able to react to surprising 'attacks' by uncontrolled pogers, it is advisable to keep your eyes at least partially open. For added security, the arm pointing toward the pounding mass can help. It is angled away from the body at head height, allowing it to cushion the impact of a poger (and the poger doesn't hit your head right away). Another protective measure is to place the teeth on top of each other as far as possible so that the teeth and tongue are not in danger in the event of an impact.”
It continues on to breathing, muscles, balance clothing and movement sequences. All in all, a good thing for beginners