Quick lateral movements of 2-3 steps between shooting positions that are close together. The gun stays mounted at eye level the entire time -- these moves are too short to lower the gun or reload. Short moves are the most common movement type in practical shooting stages and are a significant time leak for intermediate shooters who treat them as mini position-exits and position-entries rather than as continuous shooting with a brief lateral step.
Most shooters unconsciously couple their trigger press to their foot placement -- they will only fire when both feet are planted and stable. This adds 0.2-0.4s per short move. Elite shooters untether the trigger: the sight picture determines when to shoot, not the stride cycle. They fire at any point during the stride when the sight picture is acceptable. This transforms short moves from "shoot-move-shoot" into continuous shooting with brief lateral steps.