Participants write down significant events and order them chronologically Source:
Divide into groups with 5 or less people each. Distribute cards and markers. Give participants 10min to note down memorable and / or personally significant events. It's about gathering many perspectives. Consensus would be detrimental. All participants post their cards and order them. It's okay to add cards on the fly. Analyze. Color Coding can help to see patterns, e.g.:
Get a sense of everyone's position and reach consensus Source:
When the team can't decide between two options, create a big scale (i.e. a long line) on the floor with masking tape. Mark one end as option A) and the other as option B). Team members position themselves on the scale according to their preference for either option. Now tweak the options until one option has a clear majority.
Each participant notes 1 thing they like and 1 thing they'd change about the retro Source:
Prepare a flip chart with 2 columns: Head them with 'Plus' and 'Delta'. Ask each participant to write down 1 aspect of the retrospective they liked and 1 thing they would change (on different index cards). Post the index cards and walk through them briefly to clarify the exact meaning and detect the majority's preference when notes from different people point into opposite directions.