Most of the time I'm going for a pub lunch or to visit some museum or other. Not much fun doing that on your own. Other times I like to do stuff I wouldn't do with a pax on board; slinging it round some cu on a nice summer day or flinging it down the dams run at 500' from persons, vessels and structures your honour.
I like to fly most of all with my flying buddy. We both know how each other operates and individual strengths and weaknesses. Plus we have the same sense of humour and mick taking of our skills or lack of, which as we are both ex RAF tends to be pretty blunt and brutal to outside ears but hilarious to us.