1. Keep your hands high and active. This makes it more difficult to
pass the ball inside, allows you to cover more space, and causes deflections
(turnovers).
2. Stay in your stance (knees bent, butt down) so you are ready to
move at all times.
3. Move on the flight of the ball (as the ball is leaving the
passer's finger tips) to improve anticipation and quickness.
4. Know where shooters are at all times. Be ready to anticipate and
close out quickly on good shooters.
5. Communicate and talk with each other to find the shooter, call
out responsibilities, and so on.
6. Keep the ball as far from the basket as possible. As with any
defense you want to protect the basket, keeping the ball as far from the basket
as possible and forcing the opponent to take difficult shots.