Public health updates, new stock, seasonal food/beverages, recommended drinks from baristas?

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Maybe themed employee recommendations for certain days, like TV Tuesday: employees' favorite tv shows, occasionally paired with a recommended drink in the caption.

Double-Movie Mondays: see if coworkers are interested in recommending a double feature. Maybe you'll get regulars actually following along and talking about how they watched the movie recommendations.

Recipe Thursday: For when you have that really odd drink you want to recommend without necessarily wanting to explain it in person. You can have the recipe and a picture of the drink and see if people start asking for it (include in the caption to always bring the recipe so you're not dooming other locations to secret menu requests hell.)