People who wish to propose a session - to address some specific topic of their choice within the day's theme - prepare a simple 'poster', annnounce the topic to the group, and select a meeting place and time slot on the Agenda Wall.

Here you can see this phase in progress at an Open Space gathering hosted by the British Standards Institution (BSI) on June 9 2004. The topic that day was How can we make ISO 9001 internal auditing more effective?.