Left, right or knocking. How you use your whisk does make a difference.
Tested
The chefs at America's Test Kitchen put it to the test. They whipped cream, egg whites and a vinaigrette.
How does it work best?
Turning around with the whisk over the bottom never really makes sense. It is best to move the whisk horizontally back and forth. Do you want to beat egg whites? Then it is best to tilt the bowl a bit and turn the whisk around in circles.
View the entire test below.