Put up two posters labeled 'proud' and 'sorry'. Team members write down one instance per sticky note. When the time is up have everyone read out their note and post it to the appropriate poster. Start a short conversation e.g. by asking:
Did anything surprise you?
What patterns do you see? What do they mean for you as a team?
If we had ruined the last iteration what would we have done? Source:
You start the activity by asking: 'If we had completely ruined last iteration what would we have done?' Record the answers on a flip chart. Next question: 'What would be the opposite of that?' Record it on another flip chart. Now ask participants to comment the items on the 'Opposite'-chart by posting sticky notes answering 'What keeps us from doing this?'. Hand out different colored sticky notes to comment on the comments, asking 'Why is it like this?'.
Check for resistance instead of approval Source:
Georg Paulus, Siegfried Schrotta \& Erich Visotschnig via Corinna Baldauf
Do you have a hotly debated matter with several possible ways to go and the team can't agree on any of them? Instead of trying to find a majority for a way that will create winners and losers, try what happens if you turn the decision inside out: Draw a table with the voters in the left-most column and proposals on top. Now everybody has to fill in their resistance towards each proposal. 0 means 'no resistance - this is what I want', up to 10, meaning 'shoot me now'. Give the least hated solution a try.
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.