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

"It is important to be aware of the cultural norms in Basel. It is considered impolite to be late for appointments or social engagements. 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 too loudly in public. Finally, it is important to be aware of the local cuisine, and to avoid eating with your hands or making loud noises while eating," remarked another expat in Basel, Switzerland.