Happiness refers to the way that someone feels and a positive state of mind. What makes someone happy depends on the person, and each individual may have different forms of happiness and thoughts on exactly what it means. Usually happiness is spending time with loved ones, although for some money is what makes the world go around for them and they will never be happy because they always want more.
Always find time for the things that make you feel happy to be alive.
Learn to be ok with not being invited, included, or considered.
Spread love everywhere you go. Let no one ever come to you without leaving happier.
The world is full of nice people. If you can't find one, be one.