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

"It is important to be mindful of cultural differences when visiting Cape Town. It is best to avoid making assumptions about the culture and to be respectful of local customs. It is also important to dress modestly and to be aware of the local language. It is considered rude to point with your finger, so it is best to use an open hand when gesturing. Additionally, it is important to be aware of the local customs regarding public displays of affection. Finally, it is important to be aware of the local laws and to respect the local wildlife," said another expat in Cape Town, South Africa.