Take it slowly and carefully and just go with the traffic. Sometimes, you can not help but go to the lane that happen to be vacant at the time. It seems an impossible task but is usually managed with ease by consummate drivers. In the first journey, though, you may have to go the end of the road and back. On the rare occasion when you have the road to yourself, do not speed up.
Some cars come up from side roads without stopping.
At night, some cars go without lights. On those upper roads cress crossing Cairo, beware of the youngsters with powerful cars. If you see one in your rear mirror, swerving from one lane to another, just get out of their way. The same applies to buses and army trucks. If you want to argue your right of way, please choose a Fiat 500, or a Suzuki.