I enjoy my children and my wife equallly and I know they are happy too. That make me feel good and happy. When we go as a family to the park and enjoy a soccer game, and my son's team wins, I can see the happiness in each of my family members. And I like to watch my son playing and he is playing a good game and he scores a goal and his team wins the game. I enjoy the game and it makes me feel happy.
Also, I'm happy when one of my family members or a friend reaches their goals or they have what they need to reach their goals. Life is not easy, and you have to work very hard to get what you want. Even if you reach your goals and get what you want. You're not always going to have a smile in your face; Sometimes you're going to have sad moments too. Life is not always happiness. Be friendly with others and most of your life you'll be happy.
One of the happiest moments is, when I go to Mexico to visit my mom, and to see her in good health, to see her happy. I love these moments, to see my sons, my wife, and I to hugging and kissing my mom, when we first arrive to her house. I feel very happy.
That's about when I'm happy and why I'm happy.