It can depend on the cam used. If it's a big cam with lots of duration, then it would probably be best to use the methods that Brent described. On a mild cam with shorter durations, the factory method works fine. Turning the engine over by hand 4 times while in the car, as opposed to the luxury of an open dyno, is a PITA. And using the starter is obviously not good for the starter or the ring gear.
And I agree with his spinning comment. I've been fooled with hydraulic systems when the pushrod spun just as easily when compressed as it did with no pressure on it. Feeling for rocker movement gives no false indications.