Roblox head bobble script

LocalScript in StarterCharacterScripts
YT-ToxicOZ

local RunService = game:GetService("RunService")

local playerModel = script.Parent
local humanoid = playerModel:WaitForChild("Humanoid")

local function updateBobbleEffect()
 local now = tick()
 if humanoid.MoveDirection.Magnitude > 0 then -- Are we walking?
  local velocity = humanoid.RootPart.Velocity
  local bobble_X = math.cos(now * 9) / 5
  local bobble_Y = math.abs(math.sin(now * 12)) / 5

  local bobble = Vector3.new(bobble_X,bobble_Y,0) * math.min(1, velocity.Magnitude / humanoid.WalkSpeed)
  humanoid.CameraOffset = humanoid.CameraOffset:lerp(bobble,.25)
 else
  -- Scale down the CameraOffset so that it shifts back to its regular position.
  humanoid.CameraOffset = humanoid.CameraOffset * 0.75
 end
end

-- Update the effect on every single frame.
RunService.RenderStepped:Connect(updateBobbleEffect)