As a marketeer and business strategy consultant I find it essential to fully understand the industries in which I operate while maintaining an open view for cross industry insights and analyses.
To be able to advise CEOs and managers I need to be very well informed, therefore I will always come prepared.
Honesty is key. I might ask painful questions, that your staff doesn't even dare to ask. I might push where it hurts, but only to improve your workflows and business strategy.