Что такое Be on the ball Быть на мяче

As they say, ‘An idiom a day, keeps your English on the ball, okay?’ ‘Be on the ball’ means that you’re very quick to understand things or react quickly and correctly to a situation, be efficient, competent, attentive and alert. Быть начеку / быть на высоте / быть в курсе событий For example: Flash Kitten: I have to be on the ball all the time if I want to save the world. More details and examples in the article: @chill_and_chat-be-on-the-ball-ep9