Why is this KeyDown function not working?

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()

local function pickup(key)
	print("1")
	if (player.Character.Torso.Position - script.Parent.Position).Magnitude <= 10 then
		print("2")
   		if key == "f" then
		print("3")
       		game.Players[player.Name]:WaitForChild("Hunger").Value = game.Players[player.Name]:WaitForChild("Hunger").Value -5
        	script.Parent:Remove()
    	end
	end
end

mouse.KeyDown:connect(pickup)

This code is in a LocalScript, stored in a part in the Workspace, none of the prints are working? Help? thanks

I think you should do...

mouse.KeyDown:connect(function(key)
	key = key:lower()
	if key == "f" then

and then put the rest of your code afterwards.

(if it doesn't work, just comment and I'll try again)

You cannot use LocalPlayer in workspace...