Here’s a list of good PM behaviors that I think are important:

1. communicate with all the people who are influenced by the project
2. monitor and control the scope, budget and planning constrains
3. understand the content of the project in enough detail to communicate, monitor and control efficiently
4. create situations that allow the team to focus on the project goals
5. help people to get the feedback they need to grow (not the same as coaching)

To give you some context on my list, in my company we create teams around a project most of the time, it’s what the Project Management Body of Knowledge would call a projectized organization.