Brand Ambassador
Someone who creates an personified image for a brand. Usually a sexually attractive person. Most likely to use in a transactional product.
Usually sits within marketing/ branding as opposed to sales who would more actively try to influence a sale.
There’s several versions, some examples:
In a department store a make up salesperson that specifically recommends and promotes a brand
Someone who hands out samples/ brochures
A sports person that wears a sponsors brand
A lot of conferences and networking where you have attractive people representing a brand
Anyone in a company uniform like an air hostess
