What cultural faux pas should I try to avoid making in Punta del Este?

"It is important to be mindful of local customs and etiquette when visiting Punta del Este. 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 modestly and conservatively, as revealing clothing is considered inappropriate. Additionally, it is important to be respectful of the local language and to avoid speaking loudly in public. Finally, it is important to be respectful of the local culture and to avoid making any negative comments about it," remarked another expat who made the move to Punta del Este, Uruguay.