Three beer mugs labeled optimist, pessimist, and realist HD Wallpaper

Three beer mugs are displayed against a black background. The first mug, labeled 'OPTIMIST', is nearly full with dark beer and a thick head of foam. The second mug, labeled 'PESSIMIST', is half full with lighter colored beer and some foam. The third mug, labeled 'REALIST', is empty with only a few condensation droplets visible.