Approaches that can help candidates creatively express ideas in their essays for UPSC include utilizing diverse narrative styles, incorporating metaphors, and presenting case studies or anecdotes that resonate with the topic. Thinking outside conventional frameworks encourages innovative arguments and perspectives. Candidates can also draw from personal experiences or current events to make their essays more relatable. Engaging in brainstorming sessions with peers can foster creativity, while practice in writing multiple drafts allows for refinement. Lastly, staying informed about various subjects enhances original thought and expression.