NPC Dancing

-- Put script in Dummy and add animation in script

--  You need to get asset animation link from RelicatedStorage you already put it

local animationId = -"Animation ID"-
    game.InsertService:LoadAsset(animationId).Parent = game.ReplicatedStorage

-- You may don't need it the local animationId

->
local controller = script.Parent.Humanoid
controller:LoadAnimation(script.Animation):Play()

-- Make sure Dummy is unanchor expect HumanoidrootPart