Situationist app alerts members to each other’s proximity and gets them to interact in random “situations”. These situations vary from the friendly “Hug me for 5 seconds exactly” or “Compliment me on my haircut”, to the subversive eg “Help me rouse everyone around us into revolutionary fervour and storm the nearest TV station”. You have 5 minutes to find people and to set up the situation.
Members simply upload their photo and pick the situations they want to happen to them from a shortlist, in the knowledge that they might then occur anywhere, and at any time.