How to make this script work?

function Give(Plr)
	wait()
	print("Giving...")
	wait(1)
	Plr = game.Players.LocalPlayer
	Tool1 = Tool:clone()
	Tool1.Parent = Plr.Backpack
end

This is only part of the main script. I am only showing this part because it only works when I test it on ROBLOX studio, but when I test it on my actual account instead of "Player1" it doesn't give you the weapon.

You have to make sure it is in a LocalScript.