@Starlitez10 Gate area, shopping area, possibly the casino as well, basically any "public space" on the ship. I.e. it won't work in Personal Quarters, not sure if it will work "in the field" either.
It absolutely does work in Personal Quarters. I think it works anywhere. It also works in Party Chat, even if you aren't in a party.
It does, however, need to be ALL CAPS. It's case sensitive; I had to re-type it when I first entered it in lowercase.