Forum Post: shake your hands above your head

Posted 12 years ago on Oct. 11, 2011, 5:15 p.m. EST by climbboy (0) from Villasequilla, CM
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Anyone know the origins of this technique to show consent during the assemblies?

I am a Fulbrighter here in Spain doing research on culture and urbanism. Any info that folks have on connections (other than the obvious) between 15-M and Occupy Wall Street would be appreciated. PM if you want.