According to a common expression about personality types, who sees the glass as half full?

An optimist sees the glass half full. A pessimist sees it as half empty. A realist says that the glass is simply twice the size it needs to be.

When drinking a glass of barium before an Xray half empty is an optimistic thing!

if its orange juice, its "room for vodka "! lol

well! it could be an optimist or a pessimist....half full can be either

optimist sees it half full pessimist sees it half empty I see it that the glass is refillable.

The pessimist sees difficulty in every opportunity. The optimist sees the opportunity in every difficulty." - Winston Churchill

When the liquid in the vessel is half, it's time for a refill &/or top off