Aside from what's in your handbag or your google search history, your most-used emojis are probably one of the biggest clues to your inner workings, minds, motives and feelings.
It's big stuff.
So, of course, when the Duchess of Cambridge Kate Middleton accidentally revealed her most-used emojis to the world's media, we were - of course - obsessed.
The obsession comes probably because what, you might expect a few laughing crying faces in there, a shy/cringe monkey, maybe a lil kiss face or heart eyes emoji?
But no, instead, according to The Sun, who zoomed in on the screen, her most used emojis are Bowing Woman, Puff Of Air, Cucumber, Vomiting Face, Space Invader Monster, Swearing Face, Two Women Holding Hands and Pineapple.
Kate was actually appearing in a video talking aout her Early Years research - and was thanking the 'huge number' of social media followers who'd sent in questions 'with wonderful emojis attached to them'.
As she flashed her iPhone 10, a row at the bottom could be seen, which seems to reveal her most-used emojis - on other phones it would just reveal the most recently used, but in this case, multiple sources say it's the most-used the Duchess flashed.
Now, we have a LOT of theories.
Firstly, as a mother of three, we very much understand the swearing emoji face. This is no shock. Maybe also the vomiting face. Anyone who has ever had a child in any kind of school of nursery setting will know that illness is your daily lifeblood.
But the cucumber?! Prince Louis' favourite food? Or something... dare we say, more risque?
The space invader, well Kate's an 80s baby... and the pineapple, she is a millennial, maybe she's being making some Pinterest boards...
The two girls holding hands... hmm... not sure. And the shy/sad/we're not really sure girl, WTF is that about? Honestly, we actually don't think we've ever used that emoji. Where even is it?
But mostly, because we're children, we want to know why Kate Middleton is using the fart emoji... And yes, we know it's supposed to be 'hot air' but come on. Either way, either someone in the firm has got chronic gas that is regularly talked about... or someone talks a load of hot air... either way, we'd LOVE to know.
Of course, there is one simple explanation to it all... that the kids just keep stealing her phone and mashing the buttons.
But that's less interesting, so we'll continue to think about the fart suspect for now...