When moored at a dock what should you do before casting off while you warm up the engine?

Before casting off while warming up the engine at a dock, you should ensure that all lines are properly untied and stowed to prevent any entanglement. Check your surroundings for other vessels, as well as for any potential obstacles or hazards in the water. Additionally, verify that all safety equipment is accessible and that the crew is aware of the intended departure. Finally, conduct a quick inspection of the boat to confirm that everything is in order for a safe departure.