Say the absolute minimum required of you.
Saying more than you are asked for is rarely a good idea. People who use words to talk themselves up, make themselves seem cheap, as people who can talk are everywhere. You never see the powerful in the world, the true powers, open their mouth more than is necessary, and neither should you.
When talking to people, you constantly size them up, subconsciously if not consciously. You always try to determine what they are thinking, by their actions and there communication. Someone who says little, is intimidating. Someone who says little will always have the upper hand to someone who airs there thoughts openly and without consideration.
******If you ever watch movies about the mafia, who is the guy that always gets wacked first? It’s the loudmouth. The boss on the other hand, always stands their, his mind looking like its constantly churning, considering, never stopping, and will only say something when absolutely necessary. Be the boss of the family, not the guy that gets wacked.*******
(This was an email foward that I thought was very interesting)