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.:
Prepare a flip chart with 3 columns titled 'What', 'Who', and 'Due'. Ask one participant after the other, what they want to do to advance the team. Write down the task, agree on a 'done by'-date and let them sign their name. If someone suggests an action for the whole team, the proposer needs to get buy-in (and signatures) from the others.
Let team members appreciate each other and end positively Source:
Agile Retrospectives who took it from 'The Satir Model: Family Therapy and Beyond'
Start by giving a sincere appreciation of one of the participants. It can be anything they contributed: help to the team or you, a solved problem, ...Then invite others and wait for someone to work up the nerve. Close, when no one has talked for a minute.