Barker
(noun)
A person who makes loud and persistent calls in order to attract people's attention, especially to promote a show or product.
Origin:
From the action of barking or calling out in order to draw attention.
Examples:
- The barker was trying to attract customers to come see the carnival show.
- The barker's loud voice could be heard from blocks away.
- At the county fair, the barker invited people to step right up and try their luck at the games.
- The barker's job was to entice people to come inside the tent and see the amazing sights.
- The barker's persistent calls were finally answered when a curious family approached to learn more.