Aspirants can prepare for situational judgment questions in the UPSC examination by engaging in scenario-based practice. This involves understanding the context behind each question and critical evaluation of possible responses. Analyzing case studies and role-playing can improve decision-making skills. Familiarity with ethical frameworks and principles helps in justifying choices made in hypothetical situations. Group discussions with peers provide a platform for diverse perspectives and reasoning processes. Utilizing feedback from mentor evaluations of approaches aids in refining judgment skills for better preparedness during the exam.