Guess I'll be repeating what everyone is saying .... be
yourself, if you feel like sending her a sms or chat with her on
msn, jus do it.
If your afraid that she'll find you irritating, if you dun received
any replies from her, dun send any sms again, wait for her to reply
you. go slow, be a friends to her for now a see how things
go....
The fact that she actually give you her hp no. should mean that
you've made a good impression on her so dun do anything stupid to
change her impression of you.
that's all. Good Luck !! 
