Promoting yourself and trying to professionally tout your own experience and skill is one of the more common challenges people face when it comes to their careers. Bragging make you look conceited or selfish, but if you say nothing, who will? Rick Gillis, career expert and author of "Promote! It's Who Knows What You Know That Makes a Career," talks about the subtle and effective ways to make other aware of your value. He gives Tim Muma practical tips we can all use to enhance our career.