That's not Jewish prayer.
The joke about that performance art session was that the artists lured unsuspecting people into performing a "Muslim prayer" although those people thought they were taking part in an event to commemorate the history of the Warsaw Ghetto.
It seems you people don't understand art
![parrot](https://www.councilofexmuslims.com/Smileys/custom/parrot.gif)
well its hard without the context