Some Were Neighbors

Ordinary people behaved in a variety of ways during the Holocaust. Motives ranged from pressures to conform and defer to authorities, to opportunism and greed, to hatred. In many places, the persecution of Jews occurred against a backdrop of centuries of antisemitism. In Germany, many individuals who were not zealous Nazis nonetheless participated in varying degrees in the persecution and murder of Jews and other victims. Following German occupation, countless people in other countries also cooperated in the persecution of Jews.  

Everywhere, there were witnesses on the sidelines who cheered on the active participants in persecution and violence.

Most, however, remained silent.   

https://encyclopedia.ushmm.org/content/en/question/how-and-why-did-ordinary-people-across-europe-contribute-to-the-persecution-of-their-jewish-neighbors

Some Were Neightors-Day 1 (Primary Sources)

The actions of the Nazis caused all people to choose among the five following courses of action. They could be Perpetrators, Collaborators, Bystanders (the largest group of all), Resisters or Rescuers.