How weird would it be to get a card from a stranger?

There is this girl in my class. OMG, She has got to be one of the baddest chicks I have ever seen, at City College anyway. She is so fine yet she always looks like she is going to cry. We've only made small talk so far but her sadness inspired me to get her a card and write some nice things. Well I gave it to her last night after class. Hope she doesn't think I'm a weirdo. What do yall think?