As the TikTok video below shows, even 18-year-olds still get excited over seeing a smiley face on their Costco receipt. And, hey, we can’t blame ’em! In case you were wondering, Costco isn’t ...

It stands to reason then that if you use more emoji ... around 70% are emotion based – for example, smiley face, love hearts. A smaller proportion of the emoji sent are sad expressions.