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

"It is important to be respectful of local customs and traditions when visiting Sudan. It is considered impolite to show public displays of affection, so it is best to avoid kissing or hugging in public. It is also important to dress modestly, as revealing clothing is considered inappropriate. It is also important to be aware of religious customs, such as avoiding eating pork or drinking alcohol in public. Additionally, it is important to be respectful of local religious sites and to ask permission before taking photographs. Finally, it is important to be aware of local taboos, such as avoiding discussing politics or religion in public," mentioned another expat when asked about moving to Sudan.