It was easy to take the photos but it took a while to put them all next to each other. I see the change very easily from when they are not smiling to when they smile. Your bias could effect who you choose to photograph and where based on your stereotypes you created. You can ask them positive questions like how was your day? But don’t ask for religion, race, or gender so you don’t stereotype.
https://docs.google.com/presentation/d/1xgLcusYal8Y9uGWFysAjCFj2lMr29qYPZLJmcy8MsP8/edit?usp=sharing