An Optimist (n.) grabs a fishing pole when he discovers his basement is flooded.
An Optimist (n.) is a man whistling at girls through his false teeth.
An Optimist (n.) is a man who'd go into a restaurant flat broke, order oysters, and expect to pay the bill with the pearls he'll find inside.
An Optimist (n.) stays up on new year's eve to see the new year in. A pessimist stays up to make sure the old year left.
An Optimist (n.) thinks the glass is half-full... the pessimist thinks it's half-empty... the realist knows that before long he'll have to wash the glass.
An Optimist (n.) goes down to city hall to find out when his marriage license expires.
An Optimist (n.) is somebody who always sees the bright side of your problem.
An Optimist (n.) looks forward to the great scenery on a detour.