Practice finding defenders and an open area to tip to based on the defender's position.
Coach tosses a ball high outside.
Outside hitter takes an approach to the net. Next person in line helps outside hitter by informing whether the defender is deep or short. If the defender is short, the outside hitter has to top over the head of the defender. If the defender is deep, the outside hitter must tip short. After the tip, outside hitter becomes the defender.