Here are some techniques that you can use to develop your psychic potential.

1) Meditation. Mediation is where you do certain exercises to still and focus the mind. When you still the mind and focus on the now you can enter a meditative trance which allows your psychic powers to manifest. One way you can still the mind is by sitting in a chair and counting your breath 1, 2, 3, 4 and repeat. Just try and keep your attention focused on counting your breath and acknowledge other thoughts but let them go and don;t get attached to them. Do this for about 15 minutes once a day. You will find your psychic powers will get stronger the more your train yourself in meditation.
2) Emotions. As your psychic powers develop you will notice yourself picking up on the emotions of others. At times they will be strong they will be overwhelming. You will have to train yourself to realize if the emotion is coming from yourself or somebody else. When you feel an emotion coming on you want to step back and try and trace it to see if it is coming from you or someone else. If you can't find the source within yourself of the emotion acknowledge the foreign emotion and empathize and learn from it to help increase your psychic sensitivity.
3) Everyday life. When your psychic powers develop you may be tempted to get fascinated with them to the point of obsession and lose all sense or proportion. This can lead you to some dangerous mental states that isn't good your health or others. So don't neglect your real life like your job, school, friends, family and entertainment for psychic readings. There more healthy and happy you are in your real life the stronger your psychic powers will be.