I find that just being enthusiastic about boxing, in places such as work, tends to draw in people who may not be big boxing fans... but the enthusiasm rubs off on them a little bit. I also helps when a local fighter is rising through the ranks. People tend to follow boxing that much more. At work, people know that if they get me talking about boxing, I can go on for hours. So many times they seek me out before a big fight. It may not exactly bring in new fans, but it helps to keep the interest of the existing fans.