The first two months always cross streets with a friend to get used to. Then try to train yourself with easy ones to cross at the begining. Progressivly move on to more and more crowed places to cross...Another two months of such a trainig and this will become bread and butter...
Be cafeful in the streets of Cairo, cars drive at an average speed of 55 mph and do not stop for anything. Traffic accidents are common and deadly. Be careful even crossing any Egyptian street. (When I first arrived in Cairo I took a taxi from the airport to Giza and on the way my driver HIT a pedestrian, he wasn't hurt and he shook it off like it was common, he just cursed off the driver and that was the end of it.) Be careful.
Watch out for the Cairo traffic. The speed limit is roughly 90KPH but nobody inforses nor follows that. Speeding cars are common and do not stop, so be extremely careful!
Try avoiding crossing the main streets because pedestrians crossing does not exits in the Egyptian vocabulary. Cars will never stop for you so be very careful.