How to start playing WoW? Anybody guide me?

In starting level its easy to play. Nothing attacks you untill you attack it. till level 69 its easy to play. WoW characters starts from level 40. you will find it interesting to play. But 69 levels later, you could be standing toe-to-toe with Illidan Stormrage, the Betrayer -- the immortal night elf who gained demonic powers when he consumed the skull of Gul'dan. If that doesn't sound impressive to you, think of it this way -- Illidan has more than 5 million hit points.

 

When you start it's pretty easy and there are lots of guides on how to go about leveling up fast. You won't find too many difficult quests until you're really high a level, and most of the areas don't contain any real threats at the start.