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

"It is important to be aware of cultural norms when visiting Hellerup. It is important to be respectful of the local customs and to be mindful of the local language. It is also important to dress appropriately and to be aware of the local etiquette. It is considered rude to be loud or to talk too much in public, and it is important to be aware of personal space. It is also important to be aware of the local laws and regulations, and to be respectful of the local environment. Finally, it is important to be aware of the local religious beliefs and to be respectful of them," remarked another expat who made the move to Hellerup, Denmark.