Looking around the bar, I saw men and women of all ages and races drinking, eating and even singing together. It was an amazing experience.
As an exercise:
What do all of the characters in your story have in common? Are they all in prison like the prisoners and guards in Shawshank Redemption or share a birthday like the characters in Identity? Does the thing they share bring them together or tear them apart? Are they comfortable in this group or desperate to get out?