If you had to characterize yourself one way or the other, would you say that you’re an optimist or a pessimist?
There is a lot of territory in between, and there are other qualities that can affect our overall outlook: being realistic, for example.
Although I would generally consider myself an optimist, I aspire to be a “positive realist” (copyright pending). Having a positive attitude should not involve the denial of undesirable truths.
It’s easy to be optimistic when things are going well. On days when the sun is shining and things are going according to plan, it seems like everyone’s an optimist. It’s when things start to go off track that you discover what people’s real outlooks are.