Watch the fields where you see doves fly, and pay attention to the routes they follow. They will stick to the general flight paths, even with a little shooting pressure.
Doves have good eyesight and will often flare if they see you rise or swing when mounting your shotgun. Depending on the layout of your dove area, you may be able to work the terrain to your advantage, and find a treeline or break where they fly over or through. Find a place to ambush them, and you may get some decent "pass shooting".
Doves can really move when they need to, so you really have to lead them. Also watch them when you or a buddy pulls the trigger. Some doves, especially ones that have been shot at before, will put the moves on.
Have fun and watch out and keep track of where others are, especialy if you swing on low flying birds.