Touch base - to make contact or connect with someone, usually to exchange information or update on a situation.

Circle back - to return to a previous topic or conversation at a later time.

Break the ice - to initiate conversation or interaction in order to alleviate tension or formality.

In a nutshell - to summarize something concisely, typically providing the key points or main idea.

On the same wavelength (On the same page) - to share understanding or agreement with someone else about a particular topic or situation.

Keep someone in the loop - to inform or update someone regularly about ongoing developments or decisions.

Get the ball rolling - to start or initiate something, often a process or activity.

Play it by ear - to decide a course of action spontaneously or based on the circumstances as they arise, rather than planning ahead.

The elephant in the room - an obvious issue or problem that people are avoiding discussing or addressing.