I don't know if there's different versions, or what's available outside of default/Mog Station. I saw a PC standing AFK at a bulletin board the other day, and she was doing some constant "pointing at the board" emote, like you'd see busy-type NPCs doing. I don't know if you can earn it somewhere, or get it from a quest chain (I've not completed HW yet) but it was interesting as an idle animation. It was just a random graphic, it wasn't a real market board, and people don't animate when browsing that I know of. I do love that Change Pose is an option, though I doubt it would work with emotes, although it might be racial?