To successfully answer this question, you will need to be strategic! First, think of an area where you can improve. For example, maybe you could do a better job of taking initiative to solve problems before they become an issue. Your self-awareness is already a strength! Your insight that you need to grow in this area shows the interviewer that you know you have room for improvement and that you have a desire to grow. Now, think about how you can explain what you're doing to improve. Paying closer attention to detail and noticing body language are two ways you can be more perceptive. Solving problems before they start takes a lot of observation and awareness. Talk about how you are working to improve!