If you have a roblox account you can do a lot of things there. To dance in roblox you need to enable chat. All you have to do to dance once you've entered the game is open your chat window and write "/e" followed by the command you want to enter. For instance, enter "/e dance" into the chat window if you wish to dance. On the default servers of Roblox, there are three dances regarding how to dance in roblox.