I know, you're thinking "wait a minute, I'm already a human, aren't I? Isn't roleplaying a human in WoW just like being a human in real life -- plus some sword and sorcery, minus some boring office jobs and unpleasant bodily functions?" The answer is no, it's not so simple -- there's a bit of history and culture at work in Azerothian human society that all roleplayers of human characters need to be aware of. Otherwise, it's easy to fall into the trap of inconsistency with the Warcraft lore and the roleplaying that everyone else is trying to do within it.
Suppose for example that you say "Hi! My name is Walter and I was raised on a farm. Now I've come to Stormwind to have adventures and become a hero!" You may find the never-seen-danger-before style of new hero interesting to roleplay, but it would be very unlikely to find such a human in the actual Warcraft lore: ever since the orcs first came through the portal 30 years or so prior to the setting of our game, every human nation has suffered terribly as the human race barely survived 3 huge waves of devastating warfare, with some whole nations of humans completely wiped out. No human growing up in that time would have been untouched by the conflict -- and if you want to roleplay a human, you ought to know about it.
Similar issues exist for all the available player races in WoW; there are certain details about your race's history that you need to know in order to roleplay well. So today we will provide you with the basic knowledge you need to be a human. We'll leave the in-depth lore to other columns, though -- today is just a basic roleplayer's primer on one race, with other races to follow in the future.