Strategies to enhance decision-making skills for UPSC interviews include practicing mock interviews to simulate the pressure and environment of the actual interview. Candidates should review case studies relevant to current affairs, developing their analytical skills and understanding of complex issues. Engaging in discussions with peers or mentors who can provide constructive feedback is vital. Additionally, cultivating self-awareness through reflecting on personal values and experiences helps candidates articulate their thoughts effectively. Lastly, developing a well-organized approach to answering questions ensures clarity and confidence during interviews.