How you do what you do is equal to, if not more important than what you do e.g:

* How you build relationships.
* How you communicate.
* How you handle yourself in rooms where things get tense.

Personal rule:

Enter with empathy.

Do what needs to be done, as well as it can be done with the resources at hand and do it with a smile.
Exit with grace.

The how you do it, makes you memorable and trusted.