Nod "urged" Rufus to join the Unorganized Crime at the tavern. Rufus should just do something reckless, like shaving the boss lady's cat. They have a hide-out.
This is the low-spoiler guide for "How to join the Unorganized Crime" puzzle in Chaos on Deponia. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.