If you’re organizing a participatory art piece, a mass action, or a viral campaign, you don’t need to script it all out — even if you could. All you need are a few simple rules that participants can sign on to. If you hit on the right rules, they can lead to a surprisingly robust, effective, and beautiful happening.
Flash mobs operate by the same logic. The call for a 2008 flash mob pillow fight on Wall Street consisted of two rules: Bring a pillow, and don’t hit anybody who doesn’t also have a pillow. Enough said!
A more politically focused mass street action, however, often needs a stronger framework. The nature of your action, its complexity, and the degree of risk will determine the exact rules required.