Participants pick a postcard that represents their thoughts / feelings Source:
Bring a stack of diverse postcards - at least 4 four times as many as participants. Scatter them around the room and instruct team members to pick the postcard that best represents their view of the last iteration. After choosing they write down three keywords describing the postcard, i.e. iteration, on index cards. In turn everyone hangs up their post- and index cards and describes their choice.
Collect what team members perceived as good, bad and non-optimal Source:
Put up three sections labeled ‘The Good’, ‘The Bad’ and ‘The Ugly’. Give everyone 5 minutes to note down one or more things per category from the last sprint. One aspect per post-it. When the time is up, have everyone stick their post-its to the appropriate labels. Cluster as you collect, if possible.
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.