MINNEAPOLIS — A finger pressed to the lips, then drawing down the jawline — tracing out yet another social media trend making the rounds on TikTok. "Mewing" signals to others that you're ...

In the video, Kaci started mewing as if she noticed someone taking a picture of her from the side. To mew correctly, relax the tongue and ensure it's entirely against the roof of your mouth.

Mewing is a technique for flattening your tongue against the roof of your mouth that's supposed to change your jawline and face shape. Some people also claim it can help with sleep apnea ...