The attitude of posh people is one of kind of disdain for the lower classes and an assumed sense of superiority. Where are posh people to be found if you want to find some posh people where are they? It's complicated it depends on perspective there are attitudes towards truly posh people and then there are attitudes to people who act posh but aren't also. The average English person think of posH people do we like posh people well as you as you might expect  it does depend on the individual.