Learn the basics!

Before any boxer became a proffesional, every boxer have to train the basic punches and stance.

Stance:

http://en.academic.ru/pictures/enwiki/65/Attitude_droite1.jpg

A jab:

http://upload.wikimedia.org/wikipedia/commons/9/92/Jab7.jpg

A cross:

http://en.wikipedia.org/wiki/File:Direct_long1.jpg

An uppercut: 

http://en.academic.ru/pictures/enwiki/85/Uppercut2.jpg

A hook: 

http://en.academic.ru/pictures/enwiki/67/Crochet1.jpg