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

"It is important to be aware of cultural norms when visiting Rwanda. It is important to be respectful of the local culture and to avoid making any offensive or insensitive comments. It is also 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 loudly or using offensive language. Additionally, it is important to be aware of the local customs and to avoid touching people without their permission. Finally, 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 Rwanda.