Essentially, it makes you appear nonchalant yet mysterious (call it the Wednesday Addams effect), and when you flick the liner just right, it actually elongates your eye shape. Find the dreamiest tutorial of all, below.  All my knowledgeable beauty buffs out there are probably thinking: Uh, isn’t this the same thing as the popular “puppy liner” K-beauty trend? To which I say: You’re absolutely right! “Sleepy eyeliner” often has a bigger wing (which gives it a slightly more sultry appeal), but both looks have the same general goal: to appear oh-so-adorably drowsy. Leave it to TikTok to recirculate a tried-and-true trick, slap a different moniker on it, and call it brand-new. (But I digress.)  Whether you call it “puppy liner,” ‘‘sleepy liner," or something else entirely, here’s how to nail the alluring effect: 

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