Well, if you mean why do people look so miserable in my photos, it's probably because it was the middle of summer and stupidly hot! :lol It was close to 100 degrees and about 80 or 90 percent humidity. It was also extremely crowded. The line just to get into that section of the park was about 10 hours long. Once in, you had an hour to 2 hour wait to get into the gift shops and a 2 to 3 hour wait for Forbidden Journey.
Everyone was heading to the castle to ride Forbidden Journey. You can pretty much walk onto the Flight of the Hippogriff or Dragon Challenge.
Since then, I've heard that the lines have died down to what you might expect at an amusement park. Still, the gift shops are small and the items they sell are VERY popular. The gift shops have a lot of cool things to see that are not for sale, but if you want to buy the items you're better served buying them online, at the Harry Potter gift shop in the airport, or at the main gift shop as you walk into Islands of Adventure.
Having said ALL of that, I really do love this park. Just walking through the village and walking up to Hogwarts is amazing!