This sad face filter allows you to put a sad expression on a person’s face even when they’re smiling or even laughing. Want to give a Sad Face filter a try? Perhaps you’d like to use them ...

Now, she has a "permanent smile" on her face. A video shared on TikTok in March by @badgirlelliebear shows the pup, Ellie, back when she was in the shelter, looking sad and almost hopeless ...

Of the six billion emoji that are sent globally every day, around 70% are emotion based – for example, smiley face, love hearts. A smaller proportion of the emoji sent are sad expressions.