Expect the best. Prepare for the worst. Capitalize on what comes.
Attitudosis cannot survive a strong, steady dose of uplifting literature or a regular donation of your time to a good cause. Make eye contact with someone who doesn't expect it and then give her your best smile. When you are willing to improve your attitude and you take action to do so, you'll enjoy life even more.
You may not be able to change the world, but when you change your world, you have taken a major step in changing the world. And when you change your world for the better, you have positioned yourself perfectly to change the world of those around you.