That means achieving the most results, with the least effort.
So, this could be moving your arms, fingers, feet, head only when you have to, or the controls of the car in a timely way. Stay in a high gear UNTIL you can see all detail of the junction layout and who's coming from where, so you know what gear to move straight into. Think if there's anyone near enough to be affected before committing to ACTUALLY USING a signal. Get the sun-visor down BEFORE you reach the junction where you'll turn to point into the low sun.
It also means less wear-&-tear on your mechanical components, fuel, and cost.