I used to love the mystery, the brief description in a phone box, the anonymous visit to a parlour in a strange city, the small advert in a local paper.
Not hotel bars but certain bars like the Gaumont Long Bar in Manchester were good for a pickup.
I also liked the familiarity of my local parlour (Galaxy in Burnage, Manchester 20) which is still there and I visit every now and again if I am in Manchester.
Often the maid or the lady herself would describe the lady in brief detail, dimensions, basic price hair colour and little more, age if you asked.
And of course the unique parties at Cynthia's.