Correct
听其言而观其行
/ tīng qí yán ér guàn qí háng /
Strokes
Definition
hear what he says and observe what he does (idiom, from Analects); judge a person not by his words, but by his actions
Example
Definition
listen to what a person says and watch what he does; listen to a person's words and watch his deeds; judge a person by his deeds, not just by his words