Most people are psychic, but they don't really know it. All of us are born with incredible powers, but we are slowly trained out of them by the time we finish our childhood.
The real trick in developing your latent psychic gifts is not learning how to use them, but unlearning how to block them.
One way is by hypnotic programing, or by using subliminal message (
http://mindpersuasion.com/subliminal-messages) to increase your belief in your abilities. With sufficiently strong beliefs, you can overcome any blockages to your power that you've developed over the years.
Another way is to simply practice listening to your intuition. This may seem like a waste of time at first, especially since so many of us are so turned off we won't hear anything. But give yourself time, and you'll get stronger and stronger.
Think of it like you would any other type of skill, like playing the piano. Nobody would expect to read a book on the piano and then sit down and start to play beautiful music. Most people take a couple of months, at least, just learning which notes correspond to which keys.
Developing your psychic ability is going to take just as much time. How do you practice? Simply start off by sitting quietly for at least twenty or thirty minutes, and just listening to your intuition.
At first, you won't hear anything, or feel anything. The first stage is to just notice whatever is there.
Once you do start to notice things, then you'll need to encourage them to get stronger. Don't push yourself. Don't try to run a marathon the second week you've started jogging.
Just appreciate any feelings or intuitions you get, until you can get them pretty consistently.
Once you are getting consistently strong messages or feelings, next it's time to figure out what they mean.
Just take whatever messages you are receiving and then see what they correspond to in the outside world. This will also take a while. At first you'll be wrong quite often. That's natural. But the more you practice, the more accurate your "readings" will become.
Sure, some people are naturals at this, just like people are natural musicians or natural athletes. But anybody can learn anything if they practice enough.
So if you want to become psychic, you can. All you've got to do is practice.