Machine Gun Typing
When you type like you're on a mission, but every few seconds you stop like you're waiting for a signal from another dimension.
Typing "Why won't you text me back?" 8 times in a row like they're the only person in the universe.
They're typing like they're trying to prove a point, but the point is that they're annoying.
Typing like they're doing a dance battle with the keyboard and they're not going to stop until someone texts them back.