Happy individuals live with purpose. They basically see happiness in long lasting relationship. These are the individuals who are at least in their life's senescence stage. Moreover, there are people who happen to find their happiness at an early stage of their lives because they are working for their goals and living according to their values and beliefs. We have had people who admire the word simplicity. So they're seeking happiness.  To see if you are happy and content. Here are the following signs cited on psychologytoday.

1. You are happy and content when you are open to learn new things.
2. You are happy and content when you are high in humility and patience
3. You are happy and content you smiles and laughs readily
4. You are happy and content when you goes with the flow
5. You are happy and content when you practice compassion in you life
6. You are happy and content when you are often grateful
7. You are happy and content when you exercise self care
8. You are happy and content when you enjoy healthy relationships
9. You are happy and content when you are happy for other people
10. You are happy and content when you give and receive without torment
11. You are happy and content if you live with meaning and purpose
12. You are happy and content when you do not feel entitled and has fewer expectations
13. You are happy and content when you are not spiteful or insulting
14. You are happy and content when you do not hold grudges
15. You are happy and content when you do not register small annoyances
16. You are happy and content when you do not angst over yesterday and tomorrow
17. You are happy and content when you are not a martyr or victim of the bad past experiences
18. You are happy and content if you are not stingy with your happiness

These are some of the signs that almost all applicable to anyone. 

Everything is a choice. There no such thing as no choice. Not choosing is a choice. Happiness is YOUR choice not OURS.