Introduce SMART goals (specific, measurable, attainable, relevant, timely) and examples for SMART vs not so smart goals, e.g.'We'll study stories before pulling them by talking about them with the product owner each Wednesday at 9am' vs. 'We'll get to know the stories before they are in our sprint backlog'. Form groups around the issues the team wants to work on. Each group identifies 1-5 concrete steps to reach the goal. Let each group present their results. All participants should agree on the 'SMART-ness' of the goals. Refine and confirm.
A good debriefing deepens understanding, learning and sharing. Preparation: Download and assemble the Debriefing Cube and cards.
During the retrospective, roll the cube. Then draw a card from the category it shows and use it to prompt a discussion. Repeat as time permits.
This will broaden your debriefing options and is especially great for groups without a facilitator to enable them to effectively debrief on their own.