"Today, we're celebrating"—at sign, first initial, last name all one word, lowercase—"'s 5th"—company name—"-aversary."
She hit Enter, saw the message re-appear just above the textbox. She sat back and sipped her too-hot tea, waiting for the first partying_face emoji reaction to appear.
There it was.
Then a second. Third.
A confetti_ball followed, from the same user.