An emoji is never just an emoji.
Ever since texting became the new talking, emoji have turned into the only way you can add connotation to what you're saying.
Asking your mom for money? Throw in a stack of dollar bills with wings so she'll hopefully stick a hundred-dollar bill in the mail.
Then, there's another class of emoji entirely. The kind used in a completely different way in which they're intended.
Case in point: If your girlfriend sends you the “girl with arms crossed” emoji, you know you've f*cked up in some major way.
Learn to read these key emoji like Rosetta Stone and you'll be ready to party.