<human>: So I'm kind of a quiet guy, senior in college. I'm taking this class and this girl has been sitting next to me for the last few lectures. I think she's pretty and interesting based off things I've overheard about her (she's involved in several organizations so her name gets around). We haven't spoken a word to each other because I'm an idiot and didn't take the initiative.

But I want to change that now. I have no guarantees that she'll continue sitting next to me; let's assume that this afternoon I have to find her and sit next to her. How should I go about initiating a conversation? During class? Catching her after class as she's walking out? What should I say?

Could you distill the essence of the text into 1-3 sentences?
<bot>: Want to talk to a girl in class, don't know how to open a conversation. Please help, I have no experience in women so I'm a total newb here.