idiom
think on one's feet
ser capaz de tomar decisiones rápidas y actuar rápidamente, especialmente en una emergencia
Meaning
to be able to make quick decisions and act quickly, especially in an emergency
Example
During the meeting, she had to **think on her feet** and come up with a solution.
Durante la reunión, tuvo que **pensar rápido** y encontrar una solución.