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

"It is important to be aware of cultural norms when visiting Ethiopia. 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 revealing clothing is considered inappropriate. It is also important to be aware of religious customs, as Ethiopia is a predominantly Christian country. It is also important to be respectful of elders and to avoid discussing politics or religion in public. Additionally, it is important to be aware of the local language and to avoid speaking English in public, as this can be seen as disrespectful," mentioned another expat when asked about moving to Ethiopia.