When teaching your dog anything, the goal should be to encourage them to perform the desired action on their own accord. In general we should avoid making them do things and instead make them WANT to do what it is we ask. "Speak" is a great example. No matter how much you want a dog to bark at your request, you cannot force them to. Therefore, we must find a way to motivate them to do this. In this video, I'll show you a way to accomplish this!