Think back to a time when you had a hunch about something. That was intuition. It is nothing mais than your mind using mais than what you are consciously aware of. But how do you trust your intuition? How can you improve it and use it? First, understand what it is.
Gary Kasparov can play and beat the best chess computer. How is this possible when the computer can calculate positions many moves further ahead than he can. It is because of his intuitive grasp of the game. Experience allows him to combine analysis with a "sense" of which mover is best.