Prerequisite: Trained By A Master
Push (DX/Hard) is the skill of channeling your chi in order to “gently” push away an adversary or cause him to lose his balance. If successful use the higher of your ST or your Push skill as your effective ST for Shove
It might be more logical to call it Chi Push.
This noun is also the root of the term Push Kick, which is basically a shove done with 1 foot instead of 1 or 2 hands.