Cách sử dụng
The expression "look who's talking" is used when someone criticizes or judges another person for doing something, but they themselves do the same thing. It is a way of pointing out someone's hypocrisy. For example, if someone who is always late to appointments criticizes someone else for being late, you could say "look who's talking!" This expression is generally used in casual conversations with friends or family, and not in more formal situations.