thive herd of them doing it in perth city where a bunch of them where walking along then suddenly everyone stoped and strted pointing at the sky
and also they organised everyone to be walking past that big space at the front of myer and suddenly they all pulled out pillows and started beating each other for a couple of seconds then put them back in there bags or what ever and walked off.
i think there is a web site for it if you wanna take part
