pick/choose your moment

pick (one's) moment

To be circumspect and prudent when deciding the best moment to act. Sometimes used ironically to suggest the opposite. I suggest picking your moment before you ask the boss for a raise. Wow, she broke up with him on his birthday? She really knows how to pick her moment.
See also: moment, pick

pick/choose your ˈmoment

carefully choose the right time to do something: I wanted to make sure she agreed, so I picked my moment, when she was in a good mood. ♢ (ironic) You told her you wanted a divorce two days after her operation! You really picked your moment, didn’t you?
See also: choose, moment, pick