Player vs. player is very exciting in World of Warcraft game and it is a good way to obtain some of the best equipment and armor. There are some simple things you can do to dramatically increase your skill in this aspect of the game. 
Relaxed Play
When playing games, you should be relaxed. It's very important. After all, it's ony a game, you shall not take victory so seriously. Take it as a kind of way to practice your skills. If you are calm during these encounters you will be able to make clear decisions and choose effective spells, buffs, and damage skills.

Set up your tool bar for PvP action
Player versus player action is much different than normal game play and you have to use a very different set of skills to be successful with it. One of the dramatic differences is the need to capture and control your opponent. When playing against a game generated beast or humanoid you typically stand and fight and the movements of the foe are predictable. But if you face another player you may be facing running, jumping, circling, toe-to-toe bashing and a whole host of weapons and spells. So you have got to tailor your defense and offense to this very different set of challenges. I recommend you set up at least three different sets of tools for pvp. The first set would be for facing tanks and close fighters where you would focus on breaking down defense and dealing fast damage. The second tool bar would be for the ranged fighters where you would want to slow, stun, control, close in and deal damage. The third tool bar set up would be for large melee action where there are a lot of players in a small area. You would set up a lot of area of effect spells that would damage multiple opponents and buff multiple allies.

Set up a routine that you practice and use on every encounter
It is a charge, a hamstring, a step through and turn, then a heroic strike. In a few keyboard strokes I have stunned, slowed, and dealt significant damage to my opponent before he has even had a chance to respond. You should set yourself up a series of keyboard strokes and practice them over and over again until it is flawless.

Use the Game Resources
A lot of people approach PvP in a haphazard way but understanding some of the options of the game is something you really should do. It will dramatically improve your playing. Make sure that in the game play options screen you set display enemy cast bar to on. This will allow you to see what spell your targeted enemy is about to cast. And when you are in the cemetery waiting to be resurrected be sure to take a look at your combat log so you can understand what type of damage you took during the melee. This will help you to decide which armor, weapons, rings, and trinkets will be best for you.

Player vs. player action in WoW is fast and furious. It is also the only way to get some of the best armor and weapons in the game. You can significantly improve how fast you get these items by staying calm, setting up your tool bar correctly, and using the resources that come with the game.