To improve public speaking skills for the UPSC interview, candidates can adopt several methods. Engaging in group discussions and mock interviews can help build confidence and provide constructive feedback. Recording practice sessions allows aspirants to self-evaluate and refine their delivery. Participating in clubs focused on public speaking, such as Toastmasters, can foster a community that encourages practice and improvement. Additionally, studying body language and effective communication techniques equips candidates with strategies to connect with the interview panel, making their presentations more impactful.