Water - Sixpoint Lite
2. Water. Sixpoint Lite.
If you're going to be protesting all day, you'll need to keep hydrated. Also, your voice is bound to go hoarse from all the yelling. Instead of bottled water which creates unnecessary waste because of the plastic, get Sixpoint Lite. Alas, it's not beer, but it is free and clean drinking water on tap.
Would probably be nice though if they also made OccuPi(lsner).
[Pictured is Ian McConnell filling Sixpoint kegs with Sixpoint Lite from their Facebook page.]