Everything starts with a pub-tour.
Couple of drinks, couple of cigarettes, off to the next bar.
Couple of drinks, couple of cigarettes.

Then - moving on.

Next day, same thing.
Couple of drinks with a couple of cigarettes in a couple of pubs.

In each of the pubs we leave behind a nice little lighter.
Each of these lighters equipped with a nice little transmitter
and its own transmission id. 

And above the roofs antennas rise. 
The next week we spend roaming the urban habitat, tracking the
lighters, tracing the fire; logging its every move.