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

"It is important to be respectful of the local customs and traditions when visiting Chatham. It is important to be aware of the local dress code and to dress appropriately. It is also important to be aware of the local language and to avoid using offensive language. Additionally, it is important to be respectful of the local religious beliefs and to avoid making any comments that could be seen as offensive or disrespectful. Finally, it is important to be aware of the local customs and to avoid making any gestures or comments that could be seen as rude or inappropriate," mentioned another expat when asked about moving to Chatham, the United States.