I survived the San Jose color run too!! Blue face is so chicpic.twitter.com/5YFWiNq7
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
@bcrosbie colored cornstarch! they throw it in the air like dust, and also mix with water and spray you with hoses :)