Originally Posted by
B2N2
It’s also cultivating a mental state of leadership.
How would you handle a situation with the refueler, a maintenance engineer, a cabin crew member or a gate agent that made a mistake or just did an exceptional job?
I agree with all B2's comments, not just the one quoted above.
It's not so much what you need to do, as much as what you need to BE. BE dependable, stable, switched on, present, anticipating what the Captain is thinking, and being a great asset, rather than a liability. However, some captains may find exemplary first officers more a threat than an asset, so it's horses for courses.