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

"It is important to be aware of cultural differences when visiting Chile. It is important to be respectful of local customs and traditions. It is important to dress modestly and to avoid public displays of affection. It is also important to be aware of the local language and to avoid speaking English in public. It is also important to be aware of the local cuisine and to avoid eating with your hands. Additionally, it is important to be aware of the local religious beliefs and to avoid discussing sensitive topics such as politics or religion," said another expat in Chile.