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

"It is important to be mindful of cultural norms when visiting Lima. It is considered rude to point with your finger, so it is best to gesture with your whole hand. It is also important to dress modestly, as shorts and tank tops are generally not considered appropriate attire. Additionally, it is important to be respectful of religious sites and to avoid taking photographs without permission. Finally, it is important to be aware of the local customs and to be respectful of the people and their culture," remarked another expat in Lima, Peru.