If you are tall and long legged you need to place your feet away from each other, as there will be wide angle between your calves and thighs. If you are tall and have a large upper body see that height of your chair is balanced with your work. If your are short, sit fairly high so that your feet don’t touch the ground. Fill the gap with old newspapers, stools etc.
These are some of the relaxation techniques that you can follow while you are at work or in your office. You can practice these techniques at the convenience of your office place without disturbing your work.
(www.yogawiz.com)