You have a good sense of humor.
你真幽默。 (別人講笑話不管好笑不好笑， 都用這句。 )
Your Chinese is really surprising!
你的中文令人驚訝!(用來鼓勵說漢語的老外。 )
You have a very successful business.
你的事業很成功。 (現代人喜歡聽!)
Your are very professional.
你非常專業。 (他會更認真!)
Your are so smart.
你非常聰明。 (誰都願意聽!)