play it by ear

💡 Meaning

To decide what to do as the situation develops, without making a plan in advance.

미리 계획을 세우지 않고 상황이 전개되는 대로 어떻게 할지 결정하는 거예요.

🧠 Memory Hook

A jazz musician does not always follow written sheet music. Instead, they listen to what the other instruments are doing and respond in the moment — that is playing it by ear.