What is what does it mean when someone says you look good?

When someone says you look good, it generally means that they find you attractive or pleasing to the eye. However, it could also mean that they notice positive changes in your appearance, such as a new hairstyle or outfit, or that you appear confident and happy. In certain contexts, such as before a job interview or presentation, it could be a way of expressing encouragement and confidence in your abilities. Overall, it is a positive remark meant to make you feel good about yourself.