Practice with peers enhances communication skills for the UPSC interview by facilitating mock interviews, where candidates receive instant feedback. This real-time interaction helps in refining verbal articulation and body language, crucial aspects of effective communication. Engaging with fellow aspirants allows for the exchange of diverse perspectives on current affairs and ethics, which ultimately enhances analytical skills. Role-playing and facing real-time pressure in peer settings can significantly build confidence and reduce anxiety during the actual interview, making candidates better prepared to express their views clearly and convincingly.