Do you consider yourself an optimist, a pessimist, or a realist?
All of them, at different times. At the moment, I'm feeling optimistic (if I had to pick one of the three), though I'm always a "glass half empty" person. Does this mean I'm a pessimist? No. You're just more likely to get a refill from the bartender if you say that your glass is half empty, aren't you?