This summer, I was lucky enough to go to two music festivals in different countries: London for Wireless Festival and Philadelphia for Made in America. Although both cities are different, I realized festivals are the same no matter where you go in the world. In this, I discovered what I like to call the "Three Universal Truths of Festivals".
High waisted shorts were cute last summer but they're not trendy anymore. In addition, stop wearing bindis for fashion. It doesn't work.
Saying "excuse me" will not kill you, I promise. You may have to use a little attitude when you do it, but trust me, it will save you in the long run. Make sure you pay attention to where you're walking because people will be sitting (or passed out) on the ground and you don't want to be responsible for tripping over someone's neck. Also, remember to say "please" and "thank" you to those cleaning up the mess around the area and for serving you your drinks.
You're going to lose your friends at one point. You won't get service at all. But honestly, take a deep breath and enjoy the music and the people surrounding you. It's almost magical the feeling you get when you and thousands of other people are singing the same song along with the artist. Enjoy yourself, find your friends, and do it all again the next day.