From Charlie Todd, Improv Everywhere:
For our latest mission 23 actors and 2 dogs infiltrated a public space and went on “mute” at coordinated intervals. The mission took place near the northern entrance to Prospect Park in Park Slope, Brooklyn. The Mute Button was produced by Improv Everywhere as part of the Guggenheim Museum exhibition stillspotting nyc.
More information, pictures and credits here.