Optimism is not a word that we use very often these days. We also seldom hear someone else use it. What we do hear is the word "positive" when referring to our own attitude or how someone else acts.
I decided to do a Google search for the word "optimism" when I thought about bringing you this video done by Michael Fox. Of course I got a lot of sites talking about search engine optimization but very few talking about the human trait of being optimistic. Interesting how things change over the years and how our thinking has changed.
The definitions that I found: 1. to make as perfect or effective as possible. 2. to make the most of. (My choice is #2.)
What is your definition of "to be optimistic"? Come up with your own definition and then decide if your definition fits you.