Who the "ho"?

Read Belle de Jour's book over the weekend. Most of the content I had read on her blog but the juxtaposition (yes, I too have been to University) of her life as a ho with the mundanities of her life in London has provided me with a new angle when ogling women:

Could they be a working girl?

Could they be a Belle?

I suppose a variant of this is have they the looks and confidence to be able to do it?

Take this a step further and I could be talent spotting for an escort agency. New career beckons.