بشینین سنگاتونو وابکنین

Question

معمولا تو خواستگاری اینطور میگن.

Answer 1

I don't know any idiom or expression, so simply say:

Discuss all your important concerns /matters/ issues with each other clearly! 

Answer 2

Hi

This is what I came up with

You should kick your ideas about/around.

http://idioms.thefreedictionary.com/kick+around