If you believe in something, show your face and own it. Don't be a chickenshit and wear a mask.
Don't come to my town and throw rocks and cost the many local businesses more money. The G-20 Summit isn't an excuse to be a common vandal - no point can be made and you won't be taken seriously if you vandalize.
You don't have to believe me - if you think you're trying to make the world a better place, take an example from the Dalai Lama. His voice is louder than your rocks.