Assuming in only a few minutes the new content will be available and you wait exactly where the introduction quest for the new expansion pops up.
How does it look like in your bags? Are they empty or full of useful stuff?
What does your UI look like? Which AddOns are important to you?
Are there any useful toys or other items in your hotbars (stealthman 54, goblin glider, shard of archstone etc.)?