pitchwoman

/ˈpɪtʃˌwʊmən/
noun
  1. A woman who sells goods or services in a public place, often by calling out to people.
    • The pitchwoman at the market sold fresh fruit and vegetables from her cart.
    • The pitchwoman demonstrated the kitchen gadget to shoppers passing by.
    • A skilled pitchwoman can attract a crowd just by her voice and energy.