Hi Sarah, I’m Cassie from the US. You probably have enough ideas about the American style of clothes, but honestly we have all sorts of people and styles here. What seems to be the biggest styles right now, are vintage, which is like really tight jeans that grab your ankles, crazy bright make up colors, that isn’t really my type though. Even guys are wearing jeans that are so tight I’m surprised they don’t rip when they sit down. ha ha. But also I see a lot of guys that wear pants that are 4 or 5 sizes bigger that hang down to their knee caps, even with a belt. Yeah that’s gross, but they wear baggy shirts to so it covers their behind. Any ways there are so many other styles in the US, I can’t put a majority on it. I personally like wearing normal flare jeans and t-shirts. I basically wear what’s comfortable. I don’t remember the last time I wore a dress or skirt either. Well hopefully that helps a little on your project; I would suggest looking on the internet for different types of styles.