From their FAQ (http://improveverywhere.com/faq/ http://improveverywhere.com/faq/): >We are not claiming that what we are doing is improv. The majority of Impr

From their FAQ (http://improveverywhere.com/faq/ http://improveverywhere.com/faq/): >We are not claiming that what we are doing is improv. The majority of Improv Everywhere Agents met each other through the Upright Citizens Brigade Theatre in New York, the nation’s most awesome improv theatre and school. The name reflects our idea of taking some of the skills we learned at UCB and bringing them to life in public places. We stay in character at all costs and interact with members of the public with no script beyond the mission’s idea. We have no clue how people are going to react to us, and that is where the improvisation comes in. Sometimes people misread our URL as "Improve Everywhere." We think that’s probably a better name for what we try to do.