Trying to print "twrk" when I touched any part of the desk? So why won't this work?

--//Variables
Desk = workspace:FindFirstChild("Desk")
TP1 = Desk:WaitForChild("TouchPart1")
TP2 = Desk:WaitForChild("TouchPart2")
TP3 = Desk:WaitForChild("TouchPart3")
TP4 = Desk:WaitForChild("TouchPart4")


--//Function
TP1.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild("Humanoid") then
	print("f")
	end
end)