How to Make Yourself Happy

Smile- The act of smiling tends to make you feel better. Sometimes, inappropriate smiles are so ridiculous they make you laugh. Think of smiling while saying, "Oh dear, you broke your leg," and you'll get the impact.
Let Go of Everything Outside of This Moment- Right now you are sitting and looking at a computer screen. Whatever is going on, before this minute, during this minute or will happen in the next minute, let it go. Just be here now and smile.
Reflect-Think of breathing. Think of meals you've eaten. Think of being on a computer. How many people are now gasping for breath, starving to death, or will never have a computer. You're not doing bad, are you?
Recognize- Things could not have turned out any differently than they did. Regrets are used toilet paper. Flush them. What ifs and could ifs are pointless philosophical exercises.
Take Pleasure -The smallest thing, a flower, a cup of coffee, music, a pet, anything around you right now which is "okay". It doesn't have to be great, it just has to be okay. Okay is good enough.
Humor- No matter what it is, explain it to yourself in a funny way. Make a joke out of it. Some of the funniest jokes are the way someone sees adversity. Think of the worst thing that could happen, and imagine saying; "Splendid."
Control- You are going to be happy no matter what happens, what anyone says or does, you are in charge of you, and you are going to be happy.

and finally .. a tip from mr happy.. eat lotsa chocolate =) its scientificly proven =)