Super easy achievement which needs 2 players.
HAS BEEN CONFIRMED THAT A CHAIR WITH A BLANKET WILL WORK :) *See comments below for more details*
Firstly, from the main menu, select "DANCE".
Once you choose select, you will have a set of selections consisting of game modes. You want to chose "CREW THROW-DOWN"
Once you chose that, go to Settings --- Toggle Game Modes --- and DE-SELECT ALL GAME MODES EXCEPT MAKE-A-MOVE
Then, start the game! Once the game is started, make your moves. If you have a second player with you, just have them stand still or do a move completely opposite of what you did.
Achievement pops up automatically. :)