A few images from Alan Copeland and Nikki Arai's book, People's Park.
A reasonable place to start on our parking lot might be the destruction of the paving.
Then perhaps the erection of a totem, flag or sign informing the public of what we are doing. Maybe this step should come first. There are two metal posts on the Southeast corner, near "kurrent" at the base of the Press Condo building, that could support a banner or a sign of some sort.
Finally, if the lot is to be transformed into a park, the community should come together to tend to the grounds.