Girls: How often should I talk to her? Want to get to know her better?

[depressed guy]

I'm 23 years old and going off to University for a Masters course next month. There are Facebook and BBM groups for people who are joining the same course as me. A friend of mine told me that one of her friends was also joining the same course and that I should get in touch with her as we're also living in the same city. I've added her on my Facebook and BBM and we've just been talking for 2 days. She is pretty cute and she is single(my friend told me that) and I'd like to get to know her better. However, since we've just been talking for 2 days, it's very formal and just talking about which uni we've studied in, where we've worked etc etc, basically just boring stuff.
How do I break the ice and talk about more interesting stuff? Also, how often should I message her? I normally message her once a day(only for the past 2 days as I said) and we end up chatting for about 15 minutes or so.
All advice would be greatly appreciated. Thanks!