Bill Wilson seemed to describe the method of guidance in layman's terms as well as anyone has:

     In thinking about our day we may face indecision. We may not be able to determine which course to take. Here we ask God for inspiration, an intuitive thought or a decision. We relax and take it easy. We don't struggle. We are often surprised how the right answers come after we have tried this for a while. What used to be the hunch or the occasional inspiration gradually becomes a working part of the mind. Being still inexperienced and having just made conscious contact with God, it is not probable that we are going to be inspired at all times. We might pay for this presumption in all sorts of absurd actions and ideas. Nevertheless, we find that our thinking will, as time passes, be more and more on the plane of inspiration. We come to rely upon it.