chat not working?

player = game.Players.LocalPlayer
mouse = player:GetMouse()
casting = script.Parent:WaitForChild("Casting")

function Chant(msg)
	game:GetService("Chat"):Chat(player.Character.Head, msg, Enum.ChatColor.Red)
end
wait(3)
Chant("hi")

for some reason I cant see my chat, nothings in the output but it does appear help please.