Have all staff pair off. (If you have an uneven number, one group will be a triad.)
Each person has 2 minutes to respond to the prompt uninterrupted. (Remind the second person to respond to the prompt, not what their partner has shared.)
Ring the bell to start their time. Ring it after two minutes so partners can switch roles. Ring it again after 2 minutes to mark the end of this sharing time.
What did you find you mentioned in common?
Ring the bell after 1 minute.