What cultural faux pas should I try to avoid making in Bernardsville?

"In Bernardsville, it is important to be respectful of local customs and traditions. It is best to avoid making jokes or comments that could be seen as offensive or insensitive to the local culture. Additionally, it is important to be mindful of local dress codes and to dress appropriately for the occasion. It is also important to be respectful of the local environment and to avoid littering or leaving any kind of mess behind. Finally, it is important to be respectful of other people's privacy and to avoid taking pictures or videos without permission," mentioned another expat when asked about moving to Bernardsville, the United States.