The leader of this group and I were chatting at one of the stops along the way and he was just asking me the usual curiosity questions about us. I told him about my hobby and his eyes just lit up and he excalimed to my brother-in-law, "Where have you been hiding this guy?" He insisted I give a talk to their group at one of their monthly group meetings during the winter.
I did just that a couple of weeks ago. I put together a pretty cool PowerPoint presentation about my hobby and how I got started in it way back in the early 1960's as a little kid! I had photos that I took as a teenager, pictures of my scopes I owned all those years, and how this evolved to what I do today with astro-imaging etc. The latter part of the presentation started off with a really nice easy to understand explanation of what a light year really is. Then I followed that with the many images I have taken with my telescopes recently.
I was so shocked to see just how receptive this was with those elders. They were so impressed with the whole thing and we ended up talking afterward with all sorts of smart questions from most of those folks regarding light years etc. For instance, the thing that really impressed them was how I explained when they look up at the night sky, they are looking at points of history, like how everything we see occurred millions of years ago.
They want me to come back again to give more talks. I even plan on having them all over my place on a "field trip" during the summer where they can have some views through my 16" Meade on a nice clear summer evening.

This was a really personally rewarding excperience for me. I cannot express how good I felt to be able to share this wonderful hobby with the public.