Steal From an Opponent when he/she is Dribbling the Ball
Remain within an arm’s distance of your opponent when he/she is dribbling. Keep your defensive posture perfect with both your feet and shoulder width apart.
Watch opponents hands
Concentrate hard on your opponent’s movement and dribbling. Watch whether the person with the ball is better on his/her left hand or right. After you have determined his/her move, reach for the ball in a side-to-side motion when the ball is bouncing upwards after touching the floor. Make sure to return to your defensive posture if you do not successfully attempt the steal.
Steal the Ball when Passed to the Player you are Defending
Proper defensive posture is essential in order to perfect your defensive play. The distance between you and the player must be within an arm’s length.
One must attempt to bluff the opponent that he/she is out of position, and is paying no attention towards his/her direct opponent. However, in reality, you are always watching closely your direct opponent as well as the ball. One the ball is passed to that player, you reach it out with that arm which can be extended the most. Judge the flight of the ball, and tap it in front of yourself or to one of your teammate.