Although most countries in Africa have their own native language, English is also an official language in some countries.
Try to learn some phrases in the native language – the locals will appreciate it and it’ll be a learning experience for you.
Make sure to pack some medicines such as anti-malaria medication, painkillers, antibiotics, antihistamine, hydrocortisone cream, and whatever else you may need.
Definitely bring some insect repellant spray.
Be mindful of resources – don’t waste electricity, water, or be wasteful in general.
Make sure to carry cash on you and keep it secure on you.
Avoid scams by using the rule of thumb: “if it’s too good to be true, it probably is”.