No, you can't REALLY be invisible; however, you can make yourself unnoticeable.

First, through meditation and visualization exercises, you must learn to see and feel your personal aura (there are many resources - books, web sites, etc., that can help you with this).

Once you are able to do this, envision a silver light coming down from the heavens and in through your head, silver light coming from the earth through your feet, and silver light being drawn into the center of your body, until you feel it seeping out into your aura. Allow the silver

light to continue to change your aura and expand as far as you feel you need it to. At this point, stop channeling the silver light, hold it in place, and visualize the silver light to be a mirror. That

way, anyone looking at you will see nothing, as all gazes and thoughts will be reflected back.