According to a common expression about personality types, who sees the glass as half full?
Correct answer: An optimist

Red
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.

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

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

Queen Esther
I think I can be an optimist!! I have been told that I'm so optimistic!! which I think I can be!!! a lot!!

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

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

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

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