For anyone who has had an ID session from my ID toon, the Mayor Steppppo '4Ps' Kedur you will know that I pop in the package all of the holoemotes.
A guildie showed me a page today with this link as a part of it. It's really quite cool and shows what is available and how to use them.
http://swg.curby.net/holo-emotes/#intro
Credits of course go to a player somewhere names Curby.
It really is a rather good guide!
