Is this OnClicked right?

function onClicked(playerWhoClicked)
			
			
local Spiral = Instance.new("Animation")
	Spiral.AnimationId = "http://www.roblox.com/Asset?ID=227009893"
local animTrack = po.Character.Humanoid:LoadAnimation(Spiral)
		animTrack:Play()
	
			
		end
		
		MouseClick:connect(onClicked)

It should play once I click.

First, you would need to put a ClickDetector in the part you want to click in order for this function to fire. (If it is a GUI, you need a TextButton)

If it isn't a part (Assuming it is a GUI), you need to do this as your connecting line:

TextBox's Location.MouseButton1Click:connect(onClicked)

Otherwise, if it is a part, you need to do this as your connecting line:

ClickDetector's Location.MouseClick:connect(onClicked)

NOTE: Replace (TextBox's Location) and (ClickDetector's Location) with their location (Pretty obvious LOL)