This is a simple drill for exiting a restaurant seat to take a lower profile and put a couple rounds on target at 20 yards (presumably after having told your friends or family members to find floor behind cover away from you) on a half-size torso target (the little red one).
It’s just a drill to practice efficient, safe movement for direct engagement. It’s about technique rather than realism. This is not a scenario drill that accounts for lines of sight or other people. Technical skill first.