I think Im hinting at something with the title of this blog, but it will probably change later. Here is a quick post about car horn use.
They love it. People in Cairo consider the horn to be useful for the follow different expressions; hi!, get out of the way, Im coming behind you, I see you, Im a police officer, You are terrible, keep driving (despite traffic being stopped), or just as a spontaneous sign of joy.
Point is, they honk all the time. All this honking sorta desensitizes people, so some horns have been changed a little to give them more notice. This sorta horn arms race has also failed as they dont really make a person any more interested.
Some people dispense with just a honk. But others are more creative. Double, or triple honks are not unheard of and are indeed common. Sometimes leaned on, sometimes short, they come in all shapes and sizes, helping sorta personalize each one for both the honker and situation.
There are some people whose apartments overlook these major streets, and I have no idea how they sleep. But, otherwise, in a lot of ways the honking isnt bad. People are more interactive. They want to let you know they are sorta there, about to come up behind you, or just say "hi". Like a lot of things here, its grounded in some level of community and expression that I find often lacking in America.