“Full of beans”

“Fish out of water”

Feeling uncomfortable in an unfamiliar situation.

“In full swing”

Happening with full activity and energy.

“The tip of the iceberg”

A small visible part of a much bigger problem or situation.

“Give someone the benefit of the doubt”

To believe someone may be telling the truth even if you are not sure.

“Make a mountain out of a molehill”

To make a small problem seem much bigger than it is.

“Rule of thumb”

A simple practical rule based on experience.

“Change of heart”

A change in opinion or feelings.

“Get a taste of your own medicine”

To experience the same bad treatment you gave others.