Draw a table with 3 columns. Head the first one 'Destination', the second one 'Delay' and the last one 'Announcement'.
Introduce the scenario: 'You are at a train station. Where is your train going? (It can be anything, a fictional or a real place.) How much of a delay does the train currently have? And what is the announcement? Why is there a delay? (This can be a real reason or modeled after the typical announcements.)'
Each team member fills out 3 sticky notes, 1 for each column. Going around the circle, each team member posts their notes and explains briefly, why they're going to destination X and why there's a delay (or not).
Trains and train delays are very familiar in Germany. Depending on your country and culture you might want to pick a different mode of transportation.
Get a sense of everyone's position and reach consensus Source:
When the team can't decide between two options, create a big scale (i.e. a long line) on the floor with masking tape. Mark one end as option A) and the other as option B). Team members position themselves on the scale according to their preference for either option. Now tweak the options until one option has a clear majority.
Prepare 3 flip chart papers titled 'Helped', 'Hindered', and 'Hypothesis' (suggestions for things to try out). Ask participants to help you grow and improve as a facilitator by writing you sticky notes and signing their initials so that you may ask questions later.