The most important feature of individual defensive play, I would say, would be never to allow a man to get between you and the basket. Regardless of the position that the offensive man takes on the floor, the defensive man must take a position that will prevent the offensive man from having a direct path to the basket.
A defensive man should force an opponent to take long, hurried shots. If you can force a team to take long shots, the chances of their hitting the basket are not very great.
In order to prevent fouling, a good rule to follow is: Play the ball and not the man.
Another grave error is to take your eyes off a man after passes.
The footwork of a guard is important. We have mentioned elsewhere that we study our footwork so that our position is proper anywhere on the floor. A guard should slide with an opponent and not cross-step or cross his feet.
A guard should not charge an opponent. He should always approach the offensive player with feet apart in order to be able to shift to meet the offensive man's tactics.
Remember, all players on the team are guards when the opponents have the ball. After your team has taken a shot, stay and fight for the ball.
You are never too late on defense. When everything looks hopeless that is the time to dig in.
Anticipate movements. Anticipate passes.
Don't leave your feet on bluff shots.
Don't be a ball-hawk. Do not overcommit yourself.