In addition to the above excellent advice...
- Find a mentor, within your flight department or just around the hangar / airport. Ask questions, develop a good BS filter, and learn from others' experiences.
- If it's Part 91, start to develop your own go / nogo criteria. You'll very possibly be asked to fly in less than optimum circumstances (weather, aircraft status, crew rest, etc.) so you'll need to establish when to draw the line, and how to do that with the owner. Have sound reasoning as to why you're making your decision, and offer alternatives. Don't forget, once you say "yes" and execute the flight, it'll forever become the standard and will be expected for ever and ever. It's a balancing act to some degree: you want them to use their airplane (job security) but you want your opinion to be respected when you have to tell them "no".
Will you be flying the CJ single pilot? If so, been there / done that, and it can get busy.