sniggle

There's a series of adverts on the side of buses and taxis in London at the moment that say "Walk". In green writing. Of course, they are advertising a healthy spread for your bread, but its also a good form of culture jamming, or sniggling, as the street describes it.

And to make it more fun in London, there's an excellent piece of work been done by St Martin's College of Art, which shows the walking time between places on the tube. As a Londoner, I will use overground walking shortcuts, but its amazing how many people only know the tube routes, however convoluted.