I can't be optimistic. I can be hopeful.
Sentiment: POSITIVE
I'm not optimistic.
We are optimistic, but we are optimistic in a cautious fashion.
I'm an optimistic guy.
There's probably a little greater case for pessimism than optimism. But I do not rule out optimism.
I'm an optimistic person.
I am an optimistic lady.
I'm completely optimistic - I know the end is coming!
I'm confident and really optimistic.
I'm optimistic about the future.
I'm very hopeful. I am very optimistic about the future.