The right choice of artistic collaborators is very important for working with untrained performers. Your collaborating artists should have a similar approach to working with “real people” as you. During work, it is important to have all team members on the same level.
This means that your fellow artists should always treat the untrained performers with respect, regardless of the apparent differences in their experiences. They should collaborate with you to find ways to work with the set of obstacles. You should all be aware that everyone has something to learn from each other, because sharing is at the heart of the whole process.
If your workflow is geared toward stage production that will be presented to the audience, there’s another important point: monitoring the timing on stage. Stage time has different rules than in real life. Applying these rules requires long theatrical training. Untrained performers cannot be expected to time the stage action properly. This responsibility belongs to the artistic members of the team and you and your fellow artists should always be aware of that.