Practise the thinking. Keep the judgement.
空気を読む — Read the room
くうきをよむ
kuuki o yomu
Meaning
Read the room
Original example
発言する前に空気を読みました。
I read the room before speaking.
Cultural context and nuance
Infer the mood and expectations of a situation. This is a common expression, not a rule followed identically by everyone.