Aspirants can enhance their presentation skills for UPSC interviews through regular practice sessions and mock interviews. Engaging with peers or mentors facilitates constructive feedback, allowing candidates to improve their body language and verbal communication. Additionally, analyzing successful candidates' interviews highlights effective techniques and approaches. Developing a clear and concise narrative about personal experiences and motivations also contributes to presenting oneself confidently. Overall, consistent practice fosters the self-assurance required to handle interview scenarios effectively.