Skills pivotal for aspiring candidates to excel in their UPSC interviews include effective communication, active listening, and the ability to articulate thoughts coherently. Candidates should be adept at showcasing their knowledge of current affairs and connecting personal experiences to relevant topics. Critical thinking and event management skills are essential for answering situational questions. Additionally, confidence and a calm demeanor can leave a positive impression on interviewers, while self-awareness allows candidates to discuss their motivations and aspirations clearly and compellingly.