Learning to be discreet in business comes with age, maturity and the basic use of common sense. It is up to us to be in control of our words and actions. Know when to speak up and when to be silent, and if you are not sure be silent – you can usually speak up later on when you are sure about what you want to communicate.
Be polite in every circumstance and never offer unsolicited criticism. Be positive in your conversations and don’t be shy about offering sincere praise when it is appropriate. Offer your thoughts when you are sure about your facts but do not spout off on a topic in which you are only partially informed.
When in doubt be quiet and let others speak.