Nobody really knows whether people can have psychic powers. However, some people who claim to have such powers use this claim to take advantage of depressed, anxious, vulnerable people. They do this by using the techniques of hot reading and cold reading. Cold readings are also sometimes done by sales people, advertisers, counselors and others who want you to come to them for advice. While you should always have an open mind, it is important not to let someone take advantage of another person's vulnerable state.