Samantha Ramsdell has bagged the Guinness World Record for the world's largest female mouth, but avid TikTok users may already recognize her and her wide smile. Guinness World Records met Ramsdell ...

not totally closed smile. You can see the slightest sliver of teeth in her half-and-half smile here: Anne Hathaway sometimes mixes it up with a toothless smirk, but her usual Julia Roberts-esque ...

YouTube’s A / B thumbnail testing helped MrBeast find that a closed mouth led to longer watch times. YouTube’s A / B thumbnail testing helped MrBeast find that a closed mouth led to longer ...