The exit is the easy part. They will sometimes hang on to the side, hang off the skids, and pull faces from the outside at you including the front window. I have found the the jumpers prefer not to be in the hover and min pwr speed is generally a good speed for exit or slightly slower. Once they jump what about the doors? If you have someone in the cabin that didnt jump all well and good. If you have to descend with the doors open then learn from the mistakes of others, they are plenty. Soundproofing, headsets, seat cushions, charts etc can all exit during a proloned descent. Secure everything. Maintain balance during the descent, the cabin buffeting is less if the doors are off or open.
If you are on your own, be prepared to be 'apprehensive' once they exit, it gets easier with subsequent jumps. Pay attention to the potential of hypoxia, particularly the first few jumps over 8000'.
Best piece of advice; the last jump of the day is the most dangerous or potentially where the most screw-ups occur. I dont know why, it just is.