I arranged a visit to the local ATC for a number of us local flyers so we could gain an understanding and appreciation of what effect out activities had on them and vice versa. Spent a couple of hours there and went up to the tower too.
I have to say we had a great time and came away with a little more respect for what the ATCOs do and, I hope, they of us.
Ring them up and go and see them! It's also good to put a face to the voice