The ad shows two men looking through a photo album together and drinking beer.
The last illustration shows two men making eye contact toasting the occasion. The text reads: "I was curious.. I tasted it. No wonder Schlitz is the beer that made Milwaukee famous!"
The advertisement is rated Gay Vague because the nature of the interactions, especially among the men, are suggestive of gay attraction. Additionally, the verbiage of the ad, including words like "curious," add to the innuendo.