Unapproachable? Me?

Today, I had to wake up at 7:20am-ish for a lecture I had at 9am. Normally I don't have problem waking up early but when you're all warm and tight in your bed, you just don't want to! SO, I got up anyway, got to lecture. Both the lectures were very interesting and with amazing lecturers but when you're my age, all you think about is your friends, esp if you're new. So, I have made a few friends but somehow, I just don't seem to attract many people, even as friends. Do I look unapproachable? Do I smell?(i dont think so..:/) I don't know how many times I have smiled at someone and they've ignored me. Don't get me wrong, I love making friends, it's in my nature. But in a huge place where all types of people merge in together, I thought I'd do a lot better. This has upset me quite a bit but the thing is, when it comes to social life, I get upset easily. I am so used to being around friends that it sucks when you don't have that anymore. But, another thing is that this is only our first official week, so I guess I still have time to make friends and am just over-reacting. I am such a weirdo.