I would just wear a cute top and shorts. Like high waisted denim shorts with a crop top (think brandy melville). I wouldnt wear long necklaces or earrings besides studs bc usually music festivals have a lot of people and movement so they could get broken or ripped off. If you do wear a long necklace, make sure its not something that you would care if it broke. usually closed-toe shoes are better so like converse, vans, or something that will protect and stay on your feet. For hair i like headbands over wavy or curly hair. and dont wear too much makeup bc it will sweat off.

Daytime Loook Try: a bright/ colourful shirt. Depending on your style (flowy, crop, etc)