Wacky treats and social media tricks: How fast food’s secret sauce lures you in

Photos of Starbucks’ Unicorn Frappuccino were everywhere you looked on social media. And if you weren’t Facebooking, Instagramming or tweeting about the bright pink and purple drink, you were listening to people talk about it, because they’d seen it somewhere. Ditto for Taco Bell’s Naked Chicken Chips. And McDonald’s french fry-tined stunt cutlery, the Frork. And […]