5b:T44f,

Works for all WoW client versions!
EmoteSync gif

This addon lets you perform perfectly synchronized emotes with your party or raid members by writing a chat command. Everyone who participates needs to have the addon installed.

Commands (write them in chat):
/esync - Shows all commands.

/esync 0/1 - Write 0 to disable the addon and 1 to enable the addon.

/esync EMOTE - Replace EMOTE with the desired emote, for example: "/esync dance". Everyone will perform the emote with your current target as the emote target.

Source: https://github.com/techiew/WoW-Addons

5c:T459,The MIT License Copyright (c) <year> <copyright holders> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.