The idiom "go steady" is used to describe a romantic relationship where two people are exclusively dating each other, usually for an extended period of time. The term implies a level of commitment and exclusivity that is not present in casual dating.

The idiom "can't judge a book by its cover" means that one should not make judgments about something or someone based solely on their appearance or external characteristics.

The idiom "left out in the cold" means to be excluded or ignored, often intentionally. It can also mean to feel isolated or disconnected from a group or situation.

The idiom "build bridges" means to resolve or settle a disagreement or conflict. It also suggests repairing relationships or making amends after a misunderstanding or hurtful incident.

The idiom "made it" has two meanings:

• To successfully accomplish or achieve something difficult or challenging.
• To pass a test, exam, or interview with good results.