Barking Up the Wrong Tree Ex.: If you think a colleague is responsible for a missed deadline when it was actually due to a technical glitch, you’re barking up the wrong tree.
To pursue a mistaken or wrong course of action.
Break the Ice Ex.: You might share a light joke at your friend’s gathering to break the ice and get everyone talking.
To make an effort to relieve tension and start a friendly interaction in a social situation.
The Ball is in Your Court Ex.: After a job interview, if you’re waiting for the employer to respond, you could say, “The ball is in their court now.”
It is your turn or responsibility to act or decide.