How did you prepare for the conversation? Reflecting over the project and how each person participated in the project
I prepared by making a list of things that went well during the project, as well as aspects that could be improved upon. For the aspects that could be improved, I examined what I had written for any negative connotations, for when we spoke in person, keeping in mind any non-verbal ques that might change the perception of my intentions.
Appreciation is always easier, I expect. For us, it was me telling my partner that I really appreciated her positive outlook that kept me balanced when I felt overwhelmed at the beginning. This project was pretty stressful for me personally, and I had a fair amount of dread how I would handle the aspects in the conversation in a positive way. Instead of saying to my partner, "you should admit when you don't know something," I instead phrased it, "In future projects, please ask for clarification when we receive help."
Appreciation followed by Coaching, and trying to be very aware of non-verbal ques during the actual conversation.