Well my favorite perfume is Burberry original womens fragrance. It has a warm elegant scent. Sexy but not trashy ya know?
As far as what I know about perfume, its a liquid substance made from the essence of scent from various organic materials such as flowers, fruits, leaves, cotton, etc. Its used to trick the nose to be enticing and attractive in some form. Different scents produce different reactions.
Perfume is traditionally used by women on their skin but men use it too and just call it cologne, same purpose though. The most popular way of using it is as an aerosol from a spray bottle, but it is also applied in its liquid form as well.