Listed below are the elements needed to sure that the discussion between two people is positive and rewarding.
a. Both of them should have a chance to speak and express their own ideas, and let them finish.
b. Both of them should listen to what each other would say.
c. Both of them should receive and respond to respectful but honest constructive feedback.
d. Arguments should be based on the content only of their opinions.
e. If there is a disagreement, try to work on a solution, make a decision and come to a conclusion that both would agree on.