闻风而动

xī wàng dà jiā wén fēng ér dòng qiān wàn bié jǔ qí bù dìng

希望大家闻风而动，千万别举棋不定。

You are expected to answer the call with immediate actions and not with vacillation.

wǒ men kàn qíng kuàng wén fēng ér dòng ba

我们看情况，闻风而动吧。

Let's see what happens and go into action without delay.