Weather was reasonable today, so I came at 6 PM to the Planetarium to tell Paul, that I will set two scopes, and people could observe. In that moment I was not able to tell at which location. I put club's LX200GPS and small 60 mm Meade a little bit aside of parking lights on grass. I was able to do alignment, so goto function was ready. Sky was hazy, light pollution huge, parking was full of cars, because there were also another activities than Planetarium class. Actually nobody found me, and I am not sure, if anybody tried to. Paul at the end came, and helped me to disassemble scope and mount and pack it back to the car.
Considering light pollution, cold weather and just one volunteer, it is not the best setup for outreach in such conditions.
Lesson learned, maybe next time at Spring.