Can you tell me how to raise my testosterone levels naturally?

Why do you ask? If it's erectile dysfunction, get a proper workup by your physician, including a check for prolactinoma and hemochromatosis. If it's for bodybuilding, working hard and eating sensibly are the key rather than aiming for a magic testosterone level (they fluctuate anyway). Body hair's genetic and doesn't vary with testosterone. It'll often go up if you stay fit and have a good romantic relationship.