A smile is nature's best antidote for discouragement. It brings rest to the weary, sunshine to those who are frowning, and hope to those who are hopeless and defeated. A smile is so valuable that it can't be bought, begged, borrowed, or taken away against your will. You have to be willing to give a smile away before it can do anyone else any good. So if someone is too tired or grumpy to flash you a smile, let him have one of yours anyway. Nobody needs a smile as much as the person who has none to give.
Dale CarnegiePraise the slightest improvement and praise every improvement. Be hearty in your approbation and lavish in your praise.
Dale CarnegieGood speakers usually find when they finish that there have been four versions of the speech: the one they delivered, the one they prepared, the one the newspapers say was delivered, and the one on the way home they wish they had delivered.
Dale Carnegie