The key to happiness is to look at what's right in your life.
There are two ways to read this quote, as I realized after choosing it and thinking on it for a while. Then I realized what it was probably meant to express, and I laughed. I guess this reminds us that the lens through which you receive life is just your perspective at any given moment.
First, I was thinking that this quote's message is: Look for what's right there in front of you in your life- at this moment- to find happiness. I was on the bluff watching an overcast sunset when I was thinking about this quote and I noticed these lovely leaves. I think if the sunset had been more spectacular, or I hadn't been so into drawing botanicals, I might have missed their beauty.
The second meaning I now can take from this quote reads... Look for what's going right, instead of focusing on all that's wrong. Another important message- one which keeps coming into my life!
I think it's beneficial to note that the wording here is active. It could say "watch for" but when you are looking for something, you are seeking it. This suggests vigilance. I like the idea of being active in seeking out that which is positive in life, and staying present for the beauty right in front of you at any moment.