Dos Equis' "Stay Interesting" is a marketing campaign that revolves around its iconic character, "The Most Interesting Man in the World." This campaign was created to promote Dos Equis beer and has become one of the most memorable and recognizable beer advertising campaigns in recent years.

Here are the key elements and concepts associated with Dos Equis' "Stay Interesting" campaign:

1. The Most Interesting Man in the World: The campaign introduced a fictional character known as "The Most Interesting Man in the World." This character is portrayed as a sophisticated and worldly individual who has lived a life full of adventures and experiences.

2. Catchphrase: The character's catchphrase, "I don't always drink beer, but when I do, I prefer Dos Equis," became widely recognized and associated with the campaign.

3. Humor and Wit: The campaign employed humor and wit to create memorable and often humorous scenarios involving "The Most Interesting Man in the World." These scenarios showcased his remarkable and unusual feats.

4. Lifestyle Branding: Dos Equis positioned itself as a beer for those who aspire to live interesting and adventurous lives. It used the character to align the brand with a sophisticated and worldly lifestyle.

5. Iconic Visuals: The campaign featured visually striking advertisements and commercials that contributed to its memorability.

6. Narrative Storytelling: The character's adventures were often narrated in a tongue-in-cheek, storytelling manner, which added to the campaign's charm.

7. Cultural Impact: "The Most Interesting Man in the World" character became a cultural phenomenon and was widely parodied and referenced in popular culture.

8. Consistency: The campaign maintained a consistent image and message over the years, contributing to its long-lasting impact.

9. Retirement: In 2018, Dos Equis announced that "The Most Interesting Man in the World" would be retiring from the campaign, marking the end of an era for the brand's marketing.

Overall, Dos Equis' "Stay Interesting" campaign, centered around "The Most Interesting Man in the World," was a highly successful and iconic marketing effort that helped the brand stand out in the competitive beer market. It emphasized the brand's association with a unique and adventurous lifestyle, making Dos Equis a memorable choice for consumers.