Jump shooting is a form of duck hunting. Lots of fun and a good way to scout. I personally wouldn't care for hunting pheasants without a dog either.
I'll assume you are aware of camo clothing and concealment if you are a hunter so I'll skip all that. You can stand, sit, crouch, lay on the ground, or float in an inner tube. As long as you blend in with the surrounding and sit still when ducks approach you should be ok. The biggest trick to harvesting ducks is being where the ducks want to be. They have routine feeding and roosting times but not always in the same place. Field hunting over picked grain is probably the most predictable. Ducks will feed morning and evening. They will generally fly into the wind leaving a roost and will visit a field in the evening that they visited that morning but normally not the other way around. It requires no dog and very little gear. Speaking of the dog, if you intend to hunt over water or heavy cover I would consider it unethical to hunt without one. You will loose a lot of birds. Hunting flooded timber near a major river might be an options as well. If you can access the timber on foot it requires little gear and perhaps not a dog provided you are mindful of your shot and where the duck will fall.
Like a lot of things you learn by trying. Give it a shot. Good Luck!