They are also good friends. So, if Catherine was in need, Felix would give her the shirt off his back. If someone is kind to others and helps those in need, we say that person would give you the shirt off their back.

The saying to roll up one’s sleeves, however, is not the same as taking off your shirt. It means the person rolling up the shirt sleeves is preparing for some really hard work.

Now, we praise people who roll up their sleeves and who give you the shirt off their back. We take our hats off to these people. This means you look up to them and approve of their behavior. Another way of saying this is to tip your hat.

In the past, a man would take off his hat to show respect. These days, some men have lost that simple act of civility or they just don’t wear hats. But the expression lives on.

I, for example, take my hat off to anyone who helps children. But personally, I don’t tip my hat to anyone who rides someone’s coattails.

To ride someone’s coattails is to use your ties to someone else to become successful. Long coattails are no longer common on modern-day clothing. Yet the expression is still used today. And saying "you are riding someone else's coattails" is never a good thing.

But now, let’s go back to our video game designers, Catherine and Felix.

What if Felix designed a game, and it became really successful. His career takes off and he becomes famous in the gaming industry. Yet Catherine’s career is far from a success. Her games aren’t selling. So, she uses her ties to Felix to get more work.

People who know them both say she is riding Felix’s coattails. But Felix doesn’t care. He likes Catherine. And he knows she is using his success to further her career.

Anyway, there is more to the story.

Felix knows Catherine better than most people. He thinks they have sized her up all wrong. To size up someone, or size someone up, means to examine them carefully and then make a decision about them.

Felix knows that Catherine is really good at creating video games. She has the interest and necessary skills. She just needs a break.

But let’s say Catherine is still unhappy. She goes to a career counselor for advice on how to launch a successful career. He tells her there isn’t a one size fits all answer to that question.

One size fits all clothing does just that: anyone can wear it. In real life, there is rarely a one size fits all solution to a problem. And that is how we usually use this expression.

After talking to the counselor, Catherine decides to start looking for a different job -- one that uses her game designer experience. She wants to keep quiet about her decision. She only tells her good friend, Felix. He promises to keep her plans under his hat. When you keep something under your hat, you don’t share it with others. It’s a secret.

This is different from keeping something up your sleeve. Keeping something up your sleeve means that you are trying to fool someone. This expression comes from the world of magic. Some magicians might hide a card up their shirt sleeves to trick the people watching.

Catherine isn’t hiding anything in her clothing. She just wants to keep her plans private. But she is on pins and needles for months, hoping for a job offer.

Tailors often use pins and needles when making clothes. Most pins and needles are made of metal -- and they are sharp! They would hurt if you sat on them. So, if you are on pins and needles, you are waiting for something to happen.

Catherine’s wait pays off!

She gets a job designing interactive websites for schools. This career fits her like a glove. A glove that fits well is comfortable. We use this expression when something seems agreeable or when two things are a good match. Catherine and Felix celebrate her good news. These two friends are a good match, too!.

match – n. a person or thing equal or similar to another
counselor – n. a person who gives advice
takes off – informal phrasal verb : to spring into wide use or popularity
secret – n. kept hidden from others : known to only a few people
comfortable – adj. allowing you to be relaxed : causing no worries, difficulty, or uncertainty
magic – n. tricks that seem to be impossible and that are done by a performer to entertain people
magician – n. a performer who does tricks that seem to be impossible
private – adj. not known publicly or carried on in public; especially : intended only for the persons involved
pay off – informal phrasal verb : (of a course of action) yield good results; succeed.
interactive – adj. designed to respond to the actions, commands, etc., of a user