Stereotype 3. The emotional wreck (Don't do the crime if you can't do the time, we don't need to put up with your dramatic hangover or comedown so sort it out and stop shitting on our good vibe)
Stereotype 4. The litter dropping, tent dumper (Find a fucking bin and take your shit home with you, simple!)
Stereotype 5. the gurning twat (If you get to this one, you will probably be blissfully unaware of the fact that you're still dancing despite the music having stopped hours ago. Don't over do it!)
If you can avoid all of these you should be ok!
If you are in a group then make sure that you look out for one another, and if you see someone having a bad time try help them out.
Have fun and stay safe.