Originally Posted by KDS777

Wear a long sleeve shirt and stand with your hands extended at your sides.

Look at the looseness of the shirt sleeves and body.

Turn your arm 90 degrees at the elbow and place the hands palms up. Your shirt and the sleeves get tighter on your arms and sometimes the body, making it easier to see a concealment.

Not defending them overall though, as I preferred the "so they can see if you have something in your hands" answer.....................