Does she sound interested?

The other day this girl in my yeabook class found out i was writing a novel, and seemed really intrigued. So i find her on twitter that night and talk to her about it. This was our first conversation. We ended up talking about literature for three days straight, and during that conversation she told me things like we are so alike, im brilliant, my nerdiness is better to date than a ghetto guy who cant talk, that i sound smart in class. She tried to get me to watch her favorite show. When we saw each other again in school she seemed to play with her hair a tad when we talked, and laughed a lot. But idk if thats just how she acts in general. But after that conversation, she opened up to me about her insecurities and its like we have always known each other now. She continues to tell me we are like twins, and seeks me out for partner work in class. Honestly, i feel like she is interested because no girl ever becomes this friendly after the first conversation unless theyre interested. At the same time, i dont want to get my hopes up.