For the new McDonald's campaign the bus stops in Bogota (Colombia) are decorated with posters which are enhanced with a hidden Chameleon Code. The purpose of these coded posters is to generate interest and to invite the people waiting or passing by to scan the posters with the Cee App. By scanning the posters they get recent coupons and the route to the nearest McDonalds restaurant. This innovative campaign is a great way of changing a passive act of waiting for the bus into a interactive experience with possibilities for follow ups.