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

"It is important to be aware of cultural norms when visiting Kristiansand. 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 English too loudly or in a condescending manner. Finally, it is important to be aware of the local cuisine and to be respectful of it, as it is considered impolite to criticize the food," remarked another expat who made the move to Kristiansand, Norway.