Negotiation skills are crucial in the UPSC interview as they enable candidates to articulate their viewpoints persuasively while remaining open to feedback. These skills encompass active listening and the ability to find common ground, essential for engaging with a diverse panel. Candidates can practice negotiation techniques during mock interviews or peer interactions to enhance their communication and persuasion abilities. Demonstrating effective negotiation skills reflects adaptability and diplomatic understanding, which are vital qualities for any aspiring civil servant facing complex administrative scenarios.