聽其言觀其行 [听－－观－－]

Jyutping ting1 kei4 jin4 gun1 kei4 hang6
Pinyin tīng qí yán guān qí xíng

Definitions (CC-CEDICT)
  1. hear what he says and observe what he does (idiom, from Analects); judge a person not by his words, but by his actions