How do I get invisible Frost Joke/Scream? (Clown/Gypsy)

[Boob]

I know how to edit it, but I don't know how some people get no text FJ/Scream, i.e. their char just vibrates, doesn't even say the name. I've tried using just the correct amount of pressing enter, and using spaces.

[Relics]

Try doing an @command that doesn't exist.. or in bafrostjoke and dc scream