Depends on how you look at it. Either from a optimistic view or a pessimistic view. Either a positive look on it or a negative look on the glass filled halfway with water
Half full obviously as Gantic pointed out how would something be half empty it doesn't sound right example fill the glass half empty wit water or fill the glass half full with water you see .
Lazy: You don't care how the cup is, you will just drink it.
Realist: If the water was poured INTO the cup, then it is half FULL. If the water was poured OUT of the cup, then the water is half EMPTY
Engineer: The cup is twice as big
Optimist: Half Full
Pessimists: Half Empty
"The government would say that the glass is fuller than if the opposition party were in power.
The opposition would say that it is irrelevant because the present administration has changed the way such volume statistics are collected.
The philosopher would say that, if the glass was in the forest and no one was there to see it, would it be half anything?
The economist would say that, in real terms, the glass is 25% fuller than at the same time last year.
The banker would say that the glass has just under 50% of its net worth in liquid assets.
The psychiatrist would ask, "What did your mother say about the glass?"
The physicist would say that the volume of this cylinder is divided into two equal parts; one a colorless, odorless liquid, the other a colorless, odorless gas. Thus the cylinder is neither full nor empty. Rather, each half of the cylinder is full, one with a gas, one with a liquid.
The seasoned drinker would say that the glass doesn''t have enough ice in it."