Having a training partner increases the effectiveness of your work-out. Whether it is jogging with a friend or having someone to shoot hoops with, you tend to do the exercise longer and in some cases, more intense. In boxing, two person drills improves your timing and accuracy among other attributes. One drill that improves your sparring skills is what I like to call “catch and return.” Basically, one partner throws a punch (or combination) while the other blocks/defends himself then returns the same combination. Then after a few times doing this, the second boxer initiates.
*Note* The boxer in white is a beginner, this is his first time doing this.