One way is to record yourself saying " i am dreaming " or something like that and then replay your recording in a loop so it will keep going. Then wear earphones and go to bed. While dreaming you will realize that you are sleeping because of the replayed quote " i am dreaming " and then you should be able to have lucid dreams. However the first few times you do this it will probablly get on your neves. Tell me if it works.