"every radio operator should also be willing to hang a sign which encourages passersby to come ask questions and engage"

I thought about this EXACTLY! We travel a good bit in our bus conversion. I'm working on building some semi permanent radio equipment in here. Often we find ourselves in parks and other natural areas, which I plan on setting up antennas for fun.

I was thinking that I should put up a little sign that says come talk about radios!