That's how to speck english.

* All that glitters is not gold. (= Pretty things are not necessarily useful.)
A: The watch looks good.
B: All ttat glitters is not gold.

* (Someone should) be tactful (= be diplomatic)
A: I screwed up the case again.
B: Give you a tip: When you talk to a customer, be tactful.

* Behave yourself(= Act right)
A: Officer, get your hands off.
B: Hey, behave yourself, or I'll put you in jail.

* Don't be so sure! (= Are you sure?)
A: Allen will marry Kate.
B: Don't be so sure!

* Don't impose your opinions upon others. (= Don't force your opinions upon others.)
A: I think you should save money and invest it on stocks and funds.
B: Don't impose your opnions upon others. You're not my mom.

* Don't push your luck. (= Don't rely on your luck.)
A: I got away with the cops again.
B: Don't push your luck. There's no "always".

* Don't take any chances. (= Don't take a risk.)
A: John said he would finish the last part of the paper.
B: Don't take any chances. He's very busy with his new girlfriend at the moment.

Fasten your seat belt.
A: Fasten your seat belt. We're rolling.
B: Hey, don't drive so fast.

* Don't get too excited. (= Calm down)
A: Do you know Helen will come next minute?
B: I know you're in love, but don't get too excited, OK?

* get off one's back(You'd better not bother sb.)
A: It seem that Mom is in a bad mood.
B: You'd better get off her back.


P26
* Don't be modest! (= You rock it, really!)
A: It's a wonderful work. Don't be modest!
B: Thanks!

* Good for you.
A: I'll take you advice and work hard.
B: Good for you.

* good taste (in something)
A: Do you think Sam is suitable for the job?
B: Yes. He has good taste in investment.

* I'm happy for you.
A: I will go to Taiwan University.
B: I'm happy for you.