barker
n. countablen. a person who stands outside a show or shop and shouts to attract customers. You usually see them at fairs or circuses trying to get people to come inside.
n. a person who stands at the entrance to a public show or place of business and calls out to passersby to attract patrons. Often associated with carnivals, circuses, or sideshows.
The barker shouted at the crowd to see the show.
A loud barker stood outside the tent, promising that the performance inside would change our lives forever.
The traditional carnival barker relies on a rhythmic, high-energy vocal delivery designed to create a sense of urgency and curiosity in a distracted crowd.
Commonly associated with historical or traditional entertainment contexts like carnivals.