Keep the following green screen tech tips in mind...
- Avoid shadows.
- Use tripods.
- Place your subject 6-10 feet in front of the green background to avoid “green light spill” onto your subject.
- Make sure no one wears clothing that is green, brown or a combination of those two colors.
- Light the green background separately from your subject(s).
- Take advantage of a teleprompter (like the free online CuePrompter on a computer).