The idiom "a friend in need is a friend indeed" means that people are more likely to be loyal and helpful when they are faced with difficulties or emergencies. It implies that friends will step up and provide support when needed.

The idiom "point out" means to draw attention to something, often by indicating it with a gesture or word. It can also mean to make a noticeable change or difference, to emphasize an important point or feature, or to highlight an error or mistake.

The idiom "turn over a new leaf" means to make a complete change or transformation in behavior, attitude, or appearance. It suggests that someone is starting anew, leaving behind their previous self or actions.

The idiom "none of your business" is used to indicate that something is not relevant or important to someone, and they have no right or interest in it. It means that the speaker wants to keep a matter private and does not want anyone else to interfere or ask questions about it.

The idiom "speak of the devil" is used to describe a situation where someone appears unexpectedly while others are talking about them. It is often used as an exclamation of surprise by the person who has just arrived.