To apply design thinking for personal coaching, you can use techniques such as active listening and open-ended questions to understand your clients' perspectives, feelings, and needs. You can also reframe the problem or goal they want to solve or achieve, and generate a wide range of ideas that could address it. Additionally, you can create low-fidelity prototypes to represent your ideas and evaluate them with your clients using interviews, surveys, observations, and metrics. Furthermore, you can use tools such as empathy maps, personas, journey maps, point of view statements, value propositions, SMART goals, affinity diagrams, voting dots, criteria matrices, feedback forms, usability tests, experiments, feedback loops, pivot tables and learning logs to visualize and synthesize your insights, articulate and communicate your definition, organize and prioritize your ideas, evaluate and improve your prototypes and analyze and document your results.