well I am a girl scout and camp can get pretty bad.
I mean, It depends which one you go to.
Well being me as a Senior GS we usually make shirts that say like ' I love GS' because then everyone is equal. Or we wear for example like race for the cure shirts, and stuff you dont really care about. Pants and Shorts I wouldnt really worry about because Its hot and you can just wear soffe's or plaid shorts, or jean shorts, etc. But if you really want to be 'girl scout-ish' you can go online and buy some of their cute GS shirts that you can wear to camp. I have a few that are very comfy and I prefer getting white ones in case they get dirty I can bleach it.
oh and you shouldnt really care what people think about what you wear, and you know why? I tried to fit it once by wearing a purple hollister shirt and i got so many compliments and everything and i thought it was great. Until it was time to do some crafts and I got that shirt so messed up that I was mad for the longest time. It was stained, It had purple glue all over, Glitter glue on the back.. So dont worry and just wear something you can get dirty. If you know your not doing anything dirty you could wear something nicer, or just pick out a few good shirts (2-3) and let them get dirty. I did to one of mine and I call it my 'Camp shirt' because after awhile it gets so weird and messy looking it actually looks cool. And it makes the leaders and parents think you were working hard the whole day!
Well I hope I could help with the few tips I gave,
And hope you have fun!
-Daphne