Here is what Wiki wrote about street photography:

Street photography is a type of documentary photography that features subjects in candid situations within public places such as streets, parks, beaches, malls, political conventions, and other settings.
Street photography uses the techniques of straight photography in that it shows a pure vision of something, like holding up a mirror to society. Street photography often tends to be ironic and can be distanced from its subject matter, and often concentrates on a single human moment, caught at a decisive or poignant moment. On the other hand, much street photography takes the opposite approach and provides a very literal and extremely personal rendering of the subject matter, giving the audience a more visceral experience of walks of life they might only be passingly familiar with. In the 20th century, street photographers have provided an exemplary and detailed record of street culture in Europe and North America, and elsewhere to a somewhat lesser extent.
Many classic works of street photography were created in the period between roughly 1890 and 1975 and coincided with the introduction of portable cameras, especially small 35mm, rangefinder cameras. Newer works are being created with devices such as the iphone, but also with conventional cameras. Classic practitioners of street photography include Henri Cartier-Bresson, Robert Frank, Alfred Eisenstaedt, W. Eugene Smith, William Eggleston, Brassaї, Willy Ronis, Robert Doisneau, Manuel Rivera-Ortiz and Garry Winogrand.

Today me and ~S-Alnasser decided to give a try for street photography which i really like .... in Madina. The culture does not accept street photography and the culture have some kind of Fear from the Camera so you can imagine what a Nikon D90 with battery grid attached to 70-200 2.8 lens will do.

We got the courage to try it today in the most famous street in Madina ... Sultana Street ... the idea behind it is to shoot the guys and demonstrate how they spend the weekend. we will approach the people asking the permission to allow us to shoot them!! really we can not imagine how their reaction will be.

Any way we will publish the pictures soon if we succeed to take any.