now you're talking
That is what I wanted to hear; that's a good idea or a good plan, especially compared to previous suggestions. A: "We could just have some sandwiches for dinner. Or we could try that new Thai place." B: "Now you're talking!" A: "I've reconsidered, and I'm going to come on the road trip." B: "Now you're talking! You better pack, because we're leaving in 15!"
Now you’re talking!
exclam. What you are saying is making sense! Now you’re talking! You’ve got a great idea!