I have converted a few over the years. I never bring it up, but everyone knows I ride. The ones that might actually try it, will first look at you and see if it is working. If they believe it is, then they will start asking questions. Answer honestly, both the good and the bad (with work arounds for the bad). Those that try it are more likely to stick with it.
A couple of the newbies went high end right away and stayed with it.
Sadly, a couple of others were just trying to prove they were man enough to do it too. They usually made a point of arriving at work about 15 minutes before I normally got there and made sure to park their bikes in the spot I normally parked in. They only lasted a week.