An old man in the park in Lirath can teach you how to act.
The quest:
From the east gate of Lirath, e, 3n, 2e, n, nw, lsay anything, heta c toughlon.
From the lost messenger go
From the old man go
Return from the old man's house
Emote takes the text provided and emotes it to every player in the same room. It will appear on their screen with your name prepended to it.