3 Have a shared vision

When you work with models, it is not just your vision: you are working as a team and they may have great ideas, too. Listen to them and try things out. It is better to try a shot than not do it at all. Show the model some frames after you have taken them so they can get a feel of what you are trying to achieve: it will make them feel a lot more comfortable and involved, so you all have a great time.