South of France

I'm a teenager and I'll be traveling this July to Paris, Provence, the Riviera and Spain. I know that in Europe they are more "trendy" than we are in the US and I don't want to look like a tourist. However, I still want to be comfortable since we are going to be walking a lot. Most importantly, I want to look cute while not frying in the hot weather. I also want things that are versatile so I can pack less.