We agree on the information that needs to get out there. But, as you say, the logistics of doing so is what I was asking about. Every firearm owner trying to hit just one other person with the info isn't very effective. It also loses the "strength in numbers" effect that a lot of political protests use so effectively in influencing legislators. Talking over firearms with your co-worker is one thing, standing there with a bunch of other folks listening to an NRA Instructor expound on the virtues of a high ride holster vs a bellyband is something entirely else.
Another possibility would be a "Famous Faces" lecture tour that could make the rounds to various schools, civic groups, ect... Get local or National high profile people to do a circuit that would garner some positive publicity.
Another, if you still want the individual effort angle, would be for the various National gun groups to try and get a Nation wide "take a friend to the range" day. Try and emphasize the need to convert first timers into firearms safety and fun.
Those who are unfamiliar or disinclined to be ‘for’ lawful carry are unlikely to go to such a fair. You’re only going to draw people who are already at least interested in it to such an event. It would be singing to the choir.
The ‘take a friend to the range’ day, on a wide scale as part of a grassroots PR campaign would be more effective, I think. Whether individually or as part of a wider campaign someone could put together, it’s still changing individual hearts and minds, one by one.