Stating your concurrence (заявляя Ваше согласие)

This is true.
That’s true.
You’re right.
Ain’t that the truth?
Ain’t it the truth?
That’s right.
That’s for certain.
That’s for sure.
That’s for darn sure.
That’s for damn sure. (mildly vulgar)
Damn straight! (mildly vulgar)
It works for me.
Well said.
I agree.
I agree with you 100 percent.
I couldn’t agree with you more.
I have no problem with that.
We see eye to eye on this.
I couldn’t have said it better.
You took the words right out of my mouth.
I’ll drink to that!