There are three general ways to grip a handgun: the strong hand only, the weak hand only, or two-handed.
The strong hand-only grip is when you hold the gun in your dominant hand with your fingers wrapped around the grips. Your forefinger should be resting on top of the trigger, and your other fingers should be gripping tightly. Your thumb should be placed just above the speedloader button so that you can operate it easily. This grip is most often used when shooting competition target rounds or when taking long-range shots.
The weak hand-only grip is when you hold the gun in your non-dominant hand with your fingers wrapped around the back side of the grips. You will arrange your hand so that your forefinger is resting on top of the trigger, and your other fingers are gripping tightly. Your thumb should be placed just above the speedloader button so that you can operate it easily. This grip is most often used when shooting competition target rounds or when taking long-range shots.
The two-handed grip is when you hold the gun in both hands with your fingers wrapped around the grips. Your dominant hand should be holding the gun at the top, and your other hand should be supporting it from underneath. Your forefinger should be resting on top of the trigger, and your other fingers should be gripping tightly. Your thumbs should be placed just above the speedloader button so that you can operate it easily. This grip is most often used when shooting at close range or when engaging in rapid fire.
No matter which grip you use, it is important to hold the gun firmly but not too tightly. You want to avoid shaking or jerking the gun, as this will negatively impact your accuracy.