Summarize the following:
As a goalie, you are in the unique position among your teammates that you can see the entire field of play. By paying close to the game at all times, you not only help your team gain advantages, but also ensure that you’re prepared to defend the goal if the opposing team charges it. Always keep your eye on the ball, even if it’s at the other end of the field. You wouldn’t want to be surprised if it is kicked to your end of the field. Since a goalie can see the entire field of play in soccer, it is important for him to effectively communicate what he sees to his teammates. This will help them know which opponents to watch or any patterns of play. The goalie can also provide motivation for tired or lagging teammates.  Tell your teammates about certain opponents or patterns of play either during a time out or while they’re on the field. It’s important that they know these things because it not only helps them on the field, but also will help them do their job defending you and the goal area. You can also develop and use hand gesture to cue your teammates about opponents or your own planned course of action. Don't shout at your teammates too often.  Be specific, concise, and decisive in your suggestions, but deliver the message in a polite manner. Remember, that you’re not the coach. If an opposing player is charging down the field to take a shot on goal, your job as goalie is to anticipate what move he’s going to make and then aggressively defend the goal. How you react in these situations can the difference between a save and the other team scoring.  Charge oncoming players to cut down the angle of their kicks and to make yourself bigger. Charging is also a useful tool to intimidate opposing players. Moving your legs and standing on the tips of your toes will help you react more quickly to incoming plays. Those few split seconds often make a big difference in the outcome of a situation. Make yourself larger inside the goal to intimidate charging players. You can do this by raising your hands above your head or holding them out to your side. This is also a psychological trick used to make a kicker unsure of where he is kicking the ball. Reading the body language of players coming down the field. For example, if you notice a player planting his foot to kick, you can easily anticipate that the ball will follow the trajectory of the shot. Watching a player’s eyes can also give you cues about where he plans to kick the ball. Any ball traveling in the direction of the goalie can end up between the goal posts. It’s important to actively anticipate and attack any ball that comes towards you so that you don’t give the other team easy goals. Meaning, even if it is kicked higher than your height, jump! There are different ways to defend the goal area from catching the ball to kicking it or punching it out over the net. Choosing which defense strategy you use will depend on how the ball is approaching the goal area.  Catch the ball when you can. This will give you the option to punt it towards your teammates, giving them a chance at a goal. When you catch a ball to save it from going in the goal, you have two options of how to play it: you can either throw it back to your teammates with your hands or directly kick it to one of your teammates further down the field. There are times when it is not practical to catch the ball, for example if it is kicked too high or too fast. In these cases, you can deflect the ball with the palm of your hand or the tips of your fingers, or you can punch it over the net. Kick the ball without first catching it only in an emergency situation, such as an immediate threat to the goal area. If a ball is low to the ground or approaching you at a flat angle, dive for it and then get up quickly. Get up quickly if you dive, catch or kick a ball. You never know when you'll need to make a second save.

Summary:
Pay close attention to the game. Communicate with your teammates. Be aggressive and anticipate players coming down the field. Attack every ball that comes at you. Save shots on goal using your hands and feet.