Snagged elsewhere...
The optimist will say that the glass is half-full.

The pessimist will say that the glass is half-empty.

The engineer will say that the glass is twice the size it needs to be.

The politician will say that the glass will be full if he is elected, and empty if you vote for his opponent.

The project manager will want the air at the bottom and the liquid on top to make it more functional.

The guy from IT will suggest emptying the glass and refilling it.
...Ben