"Say it when you mean it, say it with sincerity” if not your words are just another set of empty words.
For example : if your a newbie playing basketball and u know u suck, i know u suck, and you complaint waiting for a respond, i would encourage " good try, don't worry practice makes progress".
If your good with loops and you always aim well i would praise : "Good job, well done"... but if i were to praise all the time or condemned all the time then my words no longer has an impact, and im pretty sure you wouldn't give 2 cent of what i have to say at all, am i right?
Be sincere, honest but kind. Don't go destroy people's hopes and dreams, encourage them, lift them but dont bring them to the clouds and watch them fall through, guide them as you go. I don't say certain things just because you say it to me, "hey charlene nice dress" i say thank you. But if i sincerely think you got some lovely shoes, i would say it. If not I'll end it with "thank you". I make it a habit to speak sincerely, and if there's nothing good to say, keep quiet. When i'm caught off guard asking me a question I'll say "aw man... why you have to ask me that haha... okay... are you ready..." truth hurts so always end with something positive :) so be sincere from the heart or else let the silent be golden.