Early in my sales career I went to a seminar that was to “empower me” with sales body language. I was skeptical to say the least. It began as expected… “fold your arms in a group and before you know it everyone has their arms folded” routine. In other words you were in control by manipulation. The seminar went further however. If you swiped your hand to the left you were putting a negative influence out where to the right would be the opposite. I could mess with their brain, cool.