Respect for each person’s solitude and personal space was essential, and the interaction badges allowed everyone to know at a glance who was open to talking. All of the conference events were optional, including the orientation itself; the overriding principle was “opportunity but not pressure.”
Source: Silberman, Steve. NeuroTribes: The Legacy of Autism and the Future of Neurodiversity (p. 448, 449). Penguin Publishing Group. Kindle Edition.