This kind of charm doesn't need any decoration. It comes out of your heart and reaches directly into others' hearts.
Spending time with someone who has good manners makes one feel comfortable.
And isn't comfort what we want the most in our daily life?
People like this know how to stand in others' shoes. They know when they should reach out a helping hand.
And what is the most basic manner that one can have?
It's knowing to respect people.
No one can survive in this world all by himself. We all need help sometimes.
And it takes respect to make others help you.
Respect is the most baseline manner.
And manner is the last kind of charm which a person can afford to lose.