How do i make an idle for a tool that starts when picked up?

Okay so, im trying to make idles for all my personal items to hold in games. they arent weapons, just social things

No matter how hard i try it isn't working. I want it to also work while the player is moving. I have an animation and everything for it, it doesn't effect the legs though. The animation in general wont start, here is my script i am using a local script i placed it straight into the tool the 0000's in the script are where i put the id of it

local player = game.Players.LocalPlayer
local character = player.Character
local humanoid = character:FindFirstChild("Humanoid")

moving = false

game.Workspace.Player.Humanoid.Running:Connect(function(speed)

if speed > 0 then

    moving = true

else

    moving = false

    end

end)

if not moving then

local animation = Instance.new("Animation")

animation.AnimationId = "http://www.roblox.com/Asset?ID=0000"

local animationTrack = humanoid:LoadAnimation(animation)

animationTrack:Play()

end