Being cool is being your own self; not doing something that someone else is telling you to do.

I'm a mirror. If you're cool with me; I'm cool with you; and the exchange starts. What you see is what you reflect. If you don't like what you see; then you've done something. If I'm standoffish; that's because you are.

Keep a cool head and maintain a low profile. Never take the lead - but aim to do something big.

Be still and cool in thine own mind and spirit.

It's so important to realize that every time you get upset; it drains your emotional energy. Losing your cool makes you tired. Getting angry a lot messes with your health.