To use the STAR model for feedback, you need to first identify the situation or scenario that you want to give feedback on. This could be a specific question, task, or challenge that the candidate faced during the interview process. For example, you could say: "I want to give you some feedback on how you handled the case study we gave you." Next, you need to explain the task or goal that was expected from the candidate in that situation. For example, you could say: "The goal of the case study was to assess your analytical, problem-solving, and communication skills." Then, you need to describe the action that the candidate took in that situation, and highlight what they did well and what they could improve on. For example, you could say: "You did a great job of breaking down the problem into smaller parts and using data to support your recommendations. However, you could have improved your presentation by being more concise and structured, and by anticipating some of the questions we asked you." Finally, you need to summarize the result that the candidate achieved or could have achieved with their action, and link it to the feedback you gave them. For example, you could say: "By being more concise and structured, you would have been able to communicate your ideas more clearly and persuasively, and show your confidence and competence in the case study."