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

"It is important to be aware of cultural norms when visiting Bergen. It is considered rude to be late for appointments or social engagements, so it is important to be punctual. It is also important to dress appropriately for the occasion, as dressing too casually or too formally can be seen as disrespectful. Additionally, it is important to be aware of the local customs and traditions, and to be respectful of them. It is also important to be aware of the local language, and to avoid speaking loudly in public or using offensive language. Finally, it is important to be aware of the local customs regarding tipping, as it is not customary to tip in Norway," said another expat in Bergen, Norway.