There's a lot of advice out there that tells you to approach someone and ask them to set up a formal mentoring relationship with you. While I don't doubt that plenty of people have had success with this approach, I don't think you need to set up something so formal. Instead, some of the best mentoring relationships can develop naturally without ever being officially labeled.
Over at U.S. News & World Report today, I talk about how to do that. Please check it out and leave your own thoughts in the comments over there.