Emergency Pad down

Advertising - reverse, for example panels in the bus stop; playing nintendo at the coffee machine; using signs to leave traces of messages/poetry/art to public space: text left on Madrid public space, roads; the calligraphy machine; gay friendly traffic lights; reverse signs of the roads;

Messages in hidden places, or "none places". Poetry underneath the bridge made by De Ploeg artist [[1]] Poetry on walls in different languages in Leiden.

Insertion of sound to place, to introduce something that's normally not there. Women's voices in men-dominated squares. Light hack in the park, help connect marriages.

Artistic interventions that are large scale, creating iconic effect and aesthetics. Yellow Duck and Christo and Jean Claude sculptures.