Micropipetting involves several steps, including setting the volume, aspirating the liquid, dispensing the liquid, and ejecting the tip. To aspirate, the plunger is depressed to the first stop, the tip is inserted into the liquid, and the plunger is released to draw the liquid up into the tip. To dispense, the tip is pressed against the side of the container, and the plunger is depressed to the second stop to release the liquid.