Eerie Eyeballs: Groupon's Gamification Done Right

I'd seen him before. Peering curiously at me from the right column where he's nestled. But I let him just stay in his corner, and went about my business the last two or three times on the Groupon website. On my next visit, however, I bit. I couldn't help myself, he was staring at me and I was totally engrossed. So I clicked on, "Clicky."

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