Do something when the act console command is ran?

[faceguydb]

I tried overriding it with concommand.Add to no luck. Does anyone know how to make something happen when "act" is ran?

[.\\Shadow}]

[lua]hook.Add( "PlayerShouldTaunt", "Act Command", function( ply )
-- do stuff.
-- return false to disable it.
end )[/lua]