It takes one to know one.
Taste of your own medicine
Break a leg.
Speak of the devil!
A penny for your thoughts.
No pain, no gain
Once in a blue moon.
Steal someone's thunder
Pull someone's leg
Cross that bridge when you come to it.
Beat around the bush.
At the drop of a hat.
You're just as bad as I am
To joke with someone.
This expression is used when the person you have just been talking about arrives.
A way of asking what someone is thinking.
Avoid saying what you mean, usually because it is uncomfortable
To take the credit for something someone else did.
Without any hesitation; instantly.
Deal with a problem if and when it becomes necessary, not before.
Happens very rarely.
Means that something happens to you, or is done to you, that you have done to someone else.
You have to work for what you want
Good luck!