The verdict is out there, loud and clear - it's survival of the fittest. You get only one chance. So before you lose the opportunity, make your move. It always helps to know about the girl's interest and if the girl is in the same class as you are or is a colleague of yours, then that's even better. Try to find out about her interests. Does she attend a dance class? Do you often find her planning for weekend movies with her friends? Which is her favorite color and so on. Be it a girl or a guy, a lot can be made out of one's interests from his/her behavior. You must be wondering why is this aspect important? Well, it is because if you want to know the person better so that asking a girl or guy out on a date becomes easier, knowing this person's likes and dislikes will give you a head start.

Personally, I think the aspect of knowing the dislikes and likes of someone isn't really that important...it's not going to increase your chances of getting a date...

I can't say I've ever accepted a first date because he asked me to do something I like to do. I base my answer on other aspects. But each to their own. I'm not in school, so the guys I date are generally unknown to me at first, or we know each other through friends, so slim chance of him knowing my likes and dislikes.