“Keep a straight face”

“An old hand”

A person with a lot of experience in something.

“At a crossroads”

At a point where an important decision must be made.

“As clear as mud”

Very confusing or not clear at all.

“Bad blood”

Anger or dislike between people because of past problems.

“Keep at bay”

To prevent something from coming close or becoming a problem.

“At arm’s length”

At a safe distance, emotionally or physically.

“Birds of a feather flock together”

Similar people often spend time together.

“Keep tabs on”

To watch or monitor carefully.