Ask each team member to try to briefly describe how their neighbour to the right felt during the iteration. Their neighbour confirms or corrects their guess. Once all participants said what they think about how their teammates felt, you get an idea of how connected they are, how the communication is flowing in your team and if people are aware of the feelings expressed, in some way, by others.
Collect some news headlines in advance and take them to the retrospective to serve as examples. Try to gather a mixture of headlines: factual, opinion, review. Place the headlines where everyone can see them. Hand out sticky notes. Give team members 10 minutes to come up with their own headlines describing newsworthy aspects of the sprint. Encourage short, punchy headlines. Stick the completed headlines to a whiteboard. If any cover the same news item, combine them. If any are unclear, ask the reporter for details. Vote on which news items to discuss and analyse in more depth.
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.
Divide a flip chart in 3 sections titled 'More of', 'Same of', and 'Less of'. Ask participants to nudge your behaviour into the right direction: Write stickies with what you should do more, less and what is exactly right. Read out and briefly discuss the stickies section-wise.