You can’t. All people that claim to be psychics (and charge money for their services) are out to make a buck by fooling people.
There may be some people that have extra senses that are not common to everyone, and I have heard of anecdotal instances of the police using “psychics” or “clairvoyants” but those people tend to offer their services for free, or just for the expense of their travel to get to a crime scene. They too, might consider themselves to be psychics, but their intentions are different. They have recognized that they have an acute ability to see things differently than your average person, they may be more creative in their thinking, or they may be able to perceive their regular 5 senses in a much more intense manner than the rest of us, but they’re not out there to make a buck.
But most people who are in the “business” of being psychics and charging money, are just really good at seeking out naive or vulnerable people, or people who are in dire straights or desperate situations, and people who need to believe in the supernatural so they can be OK with their universe, and they have learned that certain people are much more easy to read (because of their body language, they know that people inadvertently give details about their lives, and all sorts of other clues that trained law enforcement people use all of the time to try to get to the truth) If these people really did know how to tell the future, don’t you think that the government would be relying upon them to help us create a better society?
About 8 months ago, there was a few heated discussions about psychics and horoscopes and how those 2 things often seem really accurate. But then it was pointed out that most people only regard the things that are correct and disregard the rest. Almost any horoscope in any newspaper on any given day, if you were to read them, not knowing which one was yours, would have plenty of correct observations about you. That is because they are generalizations that could literally fit almost every one of us. Psychics do the same thing. Most people are going to meet a stranger, most people are going to fall in love, most people are going to come into money (whether it’s a quarter the find on the ground or winning the lottery, or simply doing well at work and getting a raise). Most people will have an interaction with someone who’s name has the letter “E” in it. Simply because these “predictions” are so common to everyone. Most people are going to meet somone with dark hair (because a majority of the people in the world have dark hair, and even natural blondes have darker hair than bottle blondes, so “dark hair” becomes a relative term). Other genera, relative terms: short, tall, large, influential, rich, connected, near by, soon, in the future, someone you already know, are all terms that can be twisted around by the client to fit his or her particular situation.
If you really want to get a good idea of what is in store for you in the future, look at yourself with a critical eye. Are you educated? Do you have enough money to take care of yourself? Are you attractive enough to attract a mate? Do you have a number of different skills and talents? When you answer these questions, you can have a pretty good idea of how your life is going to go, and you have a pretty good idea of the things that you can change about your circumstances, and which things you can’t. Knowing those things also gives you a good idea about how your life is likely to turn out, down the line. If it’s a health question, and you tell your doctor everything you can about your past health, current habits and medications and conditions and exercise levels, and whether you smoke or drink, or whether your family members have a history of certain diseases, they can give you a pretty good, realistic idea of how your health is going to be. You don’t need a psychic for that.