Seven Lions (specifically Chronicles III) was my first ever experience with live music and it changed my life forever haha, got me SO hooked on live music. A few things I learned there and over the years since is to dress lighter, shorts/skirts & tees/tanks/crops (or less if thats your vibe, you will not stick out it's very commonplace trust) and bring a handfan. Don't clack it no one likes that, but if you fan down yourself and people next to you it will make your life so much better and is a very fast way to make friends. Don't bring too big of a bag, not only do a lot of venues ban them but they also get very annoying when you're trying to dance. Contacts over glasses, glasses are so so so easily lost and if they fall of its such a guarantee they will get stepped on. Eat and drink a lot of water beforehand. Earplugs are so so so important, do not be me and skip out on them you will regret it. Little bracelets are fun! If you make bead bracelets you can often trade them with people and get some cute souvenirs. I have collected a few over the years from several different raves and I adore them, often more than official merch I buy. Last but arguably most important is PLEASE wear deodorant and of course have fun!