Experts in Pushing Hands

Being able to make someone fall does not make one an expert in pushing hands. The real expert is one who can make someone fall, when his opponent is trying to make him fall. Thus, when he is not being attacked, he does not attack. But once his opponent tries to attack him, he uses his opponent's force to counterattack.

So, being able to push someone down is just half the journey. And sometimes, you are able to push someone not because you are using your force correctly, but because you are using brute force. There is still a long way towards being able to make your opponent push himself down, to make him fall on his own.