Same as everyone else... training.

The thing with working line dogs is that they are highly trainable, not just from the intelligence/want to please standpoint but also from the motivation standpoint. When a dog will do *anything* for a ball, he comes to the table with a built in way to motivate, reward and correct. Obedience earns the ball, disobedience doesn't. Granted, as with any dog, reliable training will involve some form or correction at some point. But the vast majority of the training is easily accomplished through motivation... something that is much harder to do with a dog who isn't easy to motivate. So that first hurdle to motivational training really isn't an issue with a high drive dog.
I don't do anything. Nor have I ever had the need to. A good dog, regarless of drive level, has an "off" switch. They know when being energetic and drivey is appropriate, and when it is not.
Of course, physical exercise and mental stimulation are needed for any dog to keep it from going stir crazy. This is more true of GSDs than many other breeds, and most true of the working GSDs. So they get regular training, lots of exercise running in the yard with one another, swimming in the pond, taking walks, playing ball and frisbee.
If given those things, having them settle easily in the house for an evening spent on the sofa isn't a problem at all.
You can't put into a dog something that isn't there genetically. There is no way to make a low drive dog into a high drive dog.
What you can do is maximize whatever drive level the dog has naturally, and teach the dog to express that drive to the fullest extent possible. This can give the appearance of instilling drive, when a lower drive dog starts showing more drive, but that's not what's happening. You're not adding drive to the dog, just teaching him to use every last ounce of what nature put there. But turning him into a high drive dog isn't going to happen because he doesn't have the genetics for it.