Mindfulness of Breathing. This technique helps you to relax your body and release the pain and stress. Just concentrate on your breathing, in and out, in and out. Don't think, just focus on the physical existence and the essential part of it: breathing. The goal is to not to think - just ease your mind and let go the problems. Do not think.
Visualization. This is one of the easiest techniques. You simply have to think of a physical object in your mind. Visualize it, just look at it and admire it. Stop thinking about other things just dedicate all your attention to this chosen object. You will be able to enter a state where you become one with the world around you - you are the object!
Concentration. Concentrating means being at the centre, focusing only on a single point. All you have to do is shut off your thoughts apart from the one that you are focusing on. When you do that properly you don't sense time - because time doesn't exist. Only you and your chosen point. To practise concentration all you have to do is to look at a physical scene then close your eyes and recreate the picture mentally. See every little detail, feel every move! Exclude all other thoughts just live in the picture! This technique will help you to develop mental imagery and you will be more focused. Try to practice this every day for at least a few minutes!
Transcend. meditation. This type of meditation is an ancient Vedic technique introduced by Maharishi Mahesh yogi in 1958. This is a simple yet powerful process - just sit comfortably with eyes closed and look inward. In this silent and peaceful level of consciousness your body gains deep rest and gives you inner energy.
As you can see these techniques are easy to do, even for those who have never practised meditation or yoga. What tends to be difficult though is making the time to actually do it. But knowing the proper techniques is essential since chasing wrong methods can lead to a state where you do more harm than good! Find a good and reliable source!