Swahili in Tanzania
Exchange money at official bureaus of exchange. Rates will be fairly consistent among bureaus. Do not exchange money with people on the street although you may well get offers. Never be obvious with your wallet. In general, it is a good idea to keep your wallet hidden safely away and carry only small amounts of spending money in accessible pockets. If you are crossing the border into a nearby country, it is probably okay to change a small amount of one local currency for the other using one of the money changers who operate in the border crossing area.