This is how I do it:
1.Stand up keeping the legs apart at about two feet distance. Hang the hand loosely at your sides. Keep the head straight and look directly in front and breathe normally.
2.Inhale slowly and raise both hands towards the sky, in sidewise circular motion. Time it in such a way that by the time your hands come up, you also complete inhaling. When the hands are up, the palms should be turned forward and the arms should be in a parallel position.
3.Start exhaling and lowering the body upper area towards the ground. While bending forward, keep both hands parallel to one another and move them towards the ground. By the time both hands each the floor, you should finish exhaling.
4.Now hold the breath and stay in that position for about 6 to 8 seconds. While holding your breath, keep the upper part of the body quite loose, and the lower part, from the waist down, rigid and firm. Bend your head down towards the ground. Do not strain. Do only as much as you can comfortably.
5.Bring both hands on the legs and inhale and come up in the standing position. Now you have completed one round of Suryanamaskar Asana.
6.Rest for 5 to 6 second and then repeat the same process, while staying in the position of readiness while resting.
7.Practice 4 times daily.
There are many benefits to this asana. It activates the glands of the endocrine system. It stimulates the pancreas, adrenal, thyroid, pituitary and some other glands begin to secrete their hormones in a normal way. It has good effects on the stomach, spine and corrects many disorders.