The Best
A big one I have learnt from some good employers is to give, and demand, the best. Successful people always do it.
There are times I have stayed back for 30 or 40 minutes, without pay, to help my boss or attend a meeting, my boss appreciates this and shows it by putting some snags on the barby every so often! (He pays overtime if he requires my attendance.)
Works well for both of us.