Then there are others, who simply don't understand that they can take action to make themselves happy. Happiness is a lasting feeling of joy and gratitude. It colors one's view of everything else in the world better. Happiness is almost palpable, and you can certainly notice the characteristic in someone else. Happiness should not, however, be confused with pleasure.
Happiness is long term and innocent in nature.
Unlike happiness, pleasure is short lived and often addiction forming. For example, those who like to drink because of the pleasurable way the alcohol affects their body, will crave this feeling more and more. Similarly, those who seek after sex will soon be addicted to it's pursuit and lead shallow lives bent to the pursuit of this pleasure. Please don't misunderstand. Pleasure, if and of itself, is not wrong.