Any ideas on how to implement sway?

Help and Feedback Scripting Support
1 
repeat wait() until game:GetDescendants()

local runService = game:GetService("RunService")
local character = script.Parent

local viewmodel = game:GetService("ReplicatedStorage"):WaitForChild("Viewmodel")
viewmodel.Parent = workspace.CurrentCamera

local torso = character:WaitForChild("Torso")
local viewmodelTorso = viewmodel:WaitForChild("Torso")

local leftShoulder = torso:WaitForChild("Left Shoulder")
local rightShoulder = torso:WaitForChild("Right Shoulder")

runService.RenderStepped:Connect(function()
	character:FindFirstChild("Right Arm").LocalTransparencyModifier = 0
	character:FindFirstChild("Left Arm").LocalTransparencyModifier = 0
	
	viewmodel:SetPrimaryPartCFrame(workspace.CurrentCamera.CFrame)
	
	local distance = (workspace.CurrentCamera.CFrame.Position - character.Head.Position).Magnitude
	if distance < 1 then
		rightShoulder.Part0 = viewmodelTorso
		leftShoulder.Part0 = viewmodelTorso
	else
		rightShoulder.Part0 = torso
		leftShoulder.Part0 = torso
	end
end)

Any ideas would be helpful