Kind words are wasted upon him.
跟他说好话是白说了。
Speak good words, have good thoughts, do good deeds, and walk the right path.
口说好话，心想好意，身行好事，脚走好路。
He is a good friend that speaks well of us behind our Backs
背后说好话,才是真朋友
Button up, will you? I'm talking now.
你不讲话好不好？我正在说话。
B： A tiger is jumping and a parrot is speaking.
老虎跳，鹦鹉说话，好！你就学鹦鹉说话吧！
You' d better modify your tone.
你说话最好客气一点。
Could you keep your voice down a bit?
你们说话小声些好吗？
cap a joke, story, etc
说个更好的笑话、 故事等.
use flattering talk on somebody.
给某人说好听的奉承话。
Will you say a good word for him (say something in his favour)?
你肯为他说几句好话吗？
speak in an unfriendly tone.
以极不友好的语调说话。
Hey! Watch your tongue, OK?
嘿！说话当心点，好吗？
It pays to tell the truth. --Aesop
说实话有好处。——伊索
You' d better not say that.
你最好别说那样的话.
You would better not say that .
你最好别说那样的话。
Great talkers are little doers
人好说大话,并非实干家
Nice boys do not use naughty words.
好孩子不说下流话。
Now a quick change to things internal from things external.
好，闲话少说，言归正传。