I started playing Diablo since yesterday (I know, rather late..) and I discovered some big differences between World of WarCraft and Diablo III in playstyle. Here are five tips for those WoW players out there, who are (like me) new to Diablo.
Diablo III is made by Blizzard Entertainment, the same company which created World of WarCraft. Diablo III is called a hack and slash game, while World of WarCraft is called a MMORPG. But because the game is of the same creators, there are some similarities between the two. I stumbled upon these 5 things, which you should be aware of as a World of WarCraft player.

1. You move by clicking, not WSAD!
The first major difference between Diablo III and WoW is moving around in the world. I'm used to using the W, S, D and A buttons on my keyboard. However, in Diablo III, you have to click in order to move to a certain point.

2. Hold your mouse if you're moving to one direction
This is something I first did wrong, but thanks to a tip I can prefend a mouse arm. HOLD YOUR MOUSE when you're moving to one direction! Stop clicking to every point you have to move, because you'll only get pain in your arm and neck. Just hold your mouse, it makes moving much easier in Diablo.

3. Attacks are done by clicking and 1-2-3-4
You don't use 1 till 9 for your basic attacks. Instead, your main attacks will be your left and right click buttons on your mouse. You'll get special abilities for buttons 1 to 4, which are used sometimes. Oh, and also important to remember: your health potion is on Q.

4. Don't click the tips away like in WoW
When creating a new character in World of WarCraft, you'll click through the tips as much as possible, or you've disabled them in the menus. However, if you're new in Diablo III, read all the tips so that you know what to do later. They're really helpful and provide basic information on for example talents or skills.

5. Keep walking, you'll find the quest eventually
Sometimes, the map will help you with your quests with a moving circle so that you know you have to move there. However, this isn't always the case. Read the quest objective and make sure you run the whole dungeon. And if you really can't find it, keep walking because you will get there eventually. Once you're there, doing it again will be much easier.