This content is copyright of CelebMix.com. You scroll past an advert on social media and a famous face is gazing right back at you. Maybe it's an actor, a football legend or a reality star. Does the casino behind the campaign stand out and stick in the mind? If so, the endorsement's worked. Endorsement is designed to make us pause and make the connection between that familiar face and the brand they're promoting. Celebrities add glamour and reach to the online gaming they're showcasing.