Everything that lives has a presence, erase your own and learn to absorb and read others. This technic takes patience and years to master. I started when I was 5, but I had a good teacher. The feelings and intentions of those around you will become clear. Use this to your advantage, pain, fear, hate, love, these hide within the presence and can be manipulated as well.
you should look up things about the 3rd eye... be careful though.. if you're not and you don't know what you're doing you might open up doors you can't close. You should find someone with experience that can help you.
Learn to be still, Listen, Trust your instincts, when you "fail", dust yourself off, and try, try, again. The same as learning any new skill. Remember, "gifts" vary from individuals, whether physical, intellectual, or intuitive.