rush advice?

So I'm a freshman, and I didn't rush this year because I kind of wanted to see how people I know went through it. But I really want to rush next year. I was just wondering what rush week is like? Do y'all have any advice? I don't have any one particular sorority that I want because I honestly think that they're all great and have a lot to offer. I don't know a whole lot about the rush process and I'm really nervous about it all, but some tips would be great!