Lots of people said no to this project and something else that made it difficult was how we couldn’t ask people we knew, it had to be complete strangers. The changes I see are actually depending on who you asked. Some people made a weird smile on purpose and then had a normal face without emotion. It sets your mind to either have them in a specific pose or in a specific background that matches who they are. You could ask how their emotions are at the moment, how people react to you without knowing you, etc. The pictures are here.