Firearms safety is paramount to ensure no once is negligently shot and injured or killed. Guns typically will not fire under normal conditions unless the Trigger is Pulled, Contrary to what some famous actors would have you believe.
The easiest way to ensure the trigger is not pulled is by following Safety Rule #2 Keep your finger off the trigger and outside the trigger until your sights are on target or your identified threat.
The four Safety Rules:
Treat all firearms as if the are loaded.
Keep your finger off the trigger and outside the trigger until your sights are on target or your identified threat.
Never let your muzzle cover anything you are not intending to kill or destroy.
Always be aware of your target (threat) and what's around it and behind it.