decide on the spot; take advantage of an opportunity that comes one’s way; take the cue and act accordingly
❍ 我们受权在会谈时～。We were authorized to grasp the opportunity and act accordingly in the negotiations.
见机而作jiàn jī ér zuò
看到合适的时机就立刻行动。take advantage of an opportunity that comes one’s way, decide on the spot, act when one sees a chance