Properly heading out of the goal and lowering the angle at which the enemy can shoot can give you - without exaggeration - 70 to 80% success in defence. Timing is essential here - heading out too late will give the enemy a field to shoot, while doing it t
Let's be honest here - there's pretty much now good way of defending a penalty. In fact everything depends on luck and whether you feel the enemy's intentions. Having said that, it's a fact that the enemy usually aims at both lower corners of the goal and there's where you should search for any luck. Other than that, it's all luck.