What is a common mistake when observing around a corner?

When observing around a corner, allowing the weapon to extend beyond the corner is a significant mistake because it increases the likelihood of exposing both the weapon and the observer to potential enemy fire. When a weapon protrudes, it gives away the observer's position, which can lead to a counterattack or ambush from the enemy.

Moreover, it is crucial to maintain a low profile and minimize exposure while gathering information. By keeping the weapon close to the body and just peeking around the corner, the observer reduces the chance of detection and enhances their ability to respond to any threats without compromising their safety. This principle is part of tactical awareness and combat readiness, prioritizing concealment and protection during observation maneuvers.