1. Express Gratitude Every Day.
I do this in many ways. In the morning, I set aside a bit of my breakfast to say thank you. I try to really feel the gratitude for having another day before me. Then throughout the day I look for ways to say thank you, the way the sun pokes through the clouds Thank You, the way someone shares a smile with you over a stranger's baby on the bus Thank You, the deli has your favorite sandwich on special Thank You. (I know that at sometime in my past I would have read this paragraph and gagged.)
2. Exercise the Wonder Muscle Every Day
I don't know everything, do you? In order to learn, one must seek knowledge. The easiest way to do this is to get curious, and marvel at what you find. But the answers are less important than the state of mind of "wondering". It is there that imagination and creativity combine to open one's mind to things. It is "interest" or the "curiousity" about things that keeps this life fresh and available. Does that make sense?
3. Love and Be Loved (pets count!)
As much as you can. Why waste time hating and surrounding yourself with people who don't care about you. This works for rich, poor, smart and stupid alike.