When we ( ham radio operators) are out in public what is your go to response when asked "What are you doing?" I generally try and be honest and explain "I'm a ham radio operator and setting up to communicate with other people around the country" or something to that affect. That usually is enough and most of the times confuses people. Often I will get "oh, you mean CB?" One guy asked me if I was a scientist and doing animal tracking. I try and keep some pamphlets with me to to hand out and if someone really is interested and wants more info. What do you do, how do you act?