If I found myself in a situation where I had opposing views with another project manager, my first step would be to listen carefully to their perspective. Disagreements often stem from misunderstandings or lack of clarity, so it’s crucial to ensure I fully grasp their viewpoint. After that, I would calmly share my own perspective, highlighting the reasons and evidence that support my thinking. If our opinions still differ, I would suggest consulting with relevant parties or seeking advice from superiors or stakeholders, based on the project's circumstances. It's important to keep in mind that the primary objective is to find the best solution for the project, rather than to win a debate.