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

"It is important to be mindful of cultural differences when visiting Nigeria. It is important to be respectful of local customs and traditions, and to dress modestly. It is also important to be aware of the local language and to avoid making assumptions about people based on their ethnicity or religion. Additionally, it is important to be aware of the local etiquette when it comes to greetings and interactions with people. It is also important to be aware of the local laws and to avoid engaging in activities that are illegal in Nigeria," said another expat in Nigeria.