a) Lie on your back in a comfortable position and relax. Imagine that you are floating up off the bed. Hold that position, slightly lifted, for some time until you lose all sensation of touching the bed or floor. Once this state is achieved move slowly into an upright position and begin to travel away from your body and around the room. Pay attention to the objects and details of the room. Only when you have gained some proficiency should you try to turn round and look at your own body. Note that each stage may take months of practice and it can be too difficult for any but a practiced OBEer.
b) In any comfortable position close your eyes and imagine that there is a duplicate of yourself standing in front of you. You will find that it is very hard to imagine your own face, so it is easier to imagine this double with its back to you. You should try to observe all the details of its posture, dress (if any) and so on. As this imaginary double becomes more and more solid and realistic you may experience some uncertainty about your physical position. You can encourage this feeling by comtemplating the question ‘Where am I?’, or even other similar questions ‘Who am I?’ and so on. Once the double is clear and stable and you are relaxed, transfer your consciousness into it. You should then be able to ‘project’ in this phantom created by your own imagination. Again, each stage may take long practice.