What does the idiom to think on your feet mean?

"To think on your feet" means to be able to react quickly and intelligently to unexpected situations or challenges. It implies having the mental agility to adapt and make decisions in the moment, without needing much time to plan or prepare.

Here's how it breaks down:

* Thinking: This refers to the process of making decisions and formulating responses.

* On your feet: This implies being in a situation that requires immediate action, without the luxury of time to think beforehand.

Examples:

* "The presenter had to think on her feet when the projector malfunctioned."

* "The salesperson was able to think on his feet and answer the customer's unexpected question."

* "You need to be able to think on your feet to succeed in this job."

Essentially, "to think on your feet" is about being resourceful, adaptable, and quick-witted.