1. Be careful when choosing clothes for walking around the city - no open and bright outfits are acceptable. Also, you need to ensure that clothes have no any imitations of coins - this element of the wardrobe is not allowed here as well.
2. It is strictly prohibited to drink alcohol on the city streets. You can drink only in specially designated establishments. Keep in mind that not all restaurants offer guests strong drinks, which are often just off the menu.
3. The historic district of the city is almost completely at the disposal of pedestrians, many streets are closed to vehicles. The most convenient way to travel around the city is by taxi, which can be easily "caught" on any street. The cost of your trip should be discussed with a cab driver in advance since counters are not available in many cars.
4. The city has a well-developed bus network, so you can also travel by taxi collective minibusses. Routes may seem quite confusing, so using public transport is only recommended for those who are well-oriented in the city.
6. It is not recommended for ladies to go for a walk in the historic district alone. The best sightseeing option would be walking with a large company or being accompanied by a guide.
7. Exchange currency in banks or at the post office, as the rates offered by exchange offices at hotels are far from being favorable. ATMs can be found near major shopping malls and restaurants. Some of them may require a six-digit code, in which case it is necessary to add the missing number of zeros to the usual code. 
Algeria: travelling advices
9. It is better not to visit regions of the country close to the borders with Tunisia and Libya as public unrests are usually the strongest there. 10. Never show disrespect to locals with a foul odor or sand in the hair. It is always a good idea to stay tolerant. Moreover, this is normal in Algeria.
11. Needless to say that open tops, short skirts, and other revealing clothes are inappropriate in this country. Leave clothing of this type at home to enjoy a safe and tranquil vacation.
12. Modest outfits are the best in Algeria. Do not put on clothing decorated with coins. Prophet Muhammad was a merchant, so local people respect money and this profession. Every disdain expressed to money, as well as unnecessary spending, are an offense for Algerians. … Open
