play it by ear

成語所屬單字ear

play it by ear — 慣用語

1. To decide how to act as a situation develops instead of planning ahead.

1.慣用語
釋義

見機行事

To decide how to act as a situation develops instead of planning ahead.

例句

We don't have a plan; let's just play it by ear.

Should we play it by ear for the weekend trip?