Presentation skills play a vital role during the UPSC interview process, where candidates are required to communicate their thoughts clearly and confidently. Effective presentation encompasses not just verbal communication but also body language and eye contact. Candidates must articulate their motivations, experiences, and viewpoints, demonstrating their understanding and engagement with various issues. Good presentation skills can create a positive impression on the interview panel, thereby influencing decision-makers. Practicing mock interviews can help improve these skills, ensuring candidates are well-prepared to express themselves effectively.