Aspirants can enhance their decision-making skills for the UPSC interview by engaging in mock interviews and practicing under pressure. Participating in group discussions helps sharpen their articulation and critical thinking. Seeking feedback from mentors and peers after practice sessions can provide valuable insights. Reading current affairs critically enables aspirants to form opinions and back them up logically. Additionally, staying calm and composed during interviews reflects confidence and helps in making rational decisions. Acquainting oneself with the UPSC panel's expectations also prepares candidates to respond effectively and with clarity.