Make the lateral raise work even better with this simple modification.
Compared to other free-weight lateral raise variations, this exercise puts the deltoid under tension for a greater portion of the range of motion, making each rep more effective. It also places greater overload at the top of the movement.
Think about "pushing the dumbbell away" from your body as you raise it. This keeps your traps from taking over and keeps the tension where you want it.
Go to any gym these days and you see most trainees doing an endless number of reps all in the hopes of attaining the oh-so elusive and fleetingly short pump.