There are things that you should keep in mind, if you want to learn to milk cows. Clean the teats, before you begin. To milk the cow manually, squeeze the teats and draw your hand downward, at the same time. Squeeze and pull down, until there is no more milk. Cows have to be milked at least a couple of times a day. If you are going to milk the cow with a milker, then you will have to clean the teats first. Then, attach the milker to each teat. Each one must be attached to a separate teat. It will milk the cow, until there is no more milk. It will automatically drop off the cow, when there's no more milk.