If you want to learn tennis serve then, you must notice and learn properly all its moves and techniques. One of those important things is that of the toss. You must take proper care in tossing the ball so that it does not rise very high or too low. The toss that is thrown too high will be normally affected by the prevailing wind and thus cause a major timing problem. While the tosses that are very low can lead to other problems, like it may end up in bouncing on the net. Therefore, proper care must be taken while you raise a toss.