OMFG DUMBASS... INTRODUCE YOURSELF TO HER NEXT TIME YOU SEE HER AND TALK TO HER. IF YOU GET REJECTED WHO CARES, YOU DON'T KNOW THE ACTUAL GIRL!!
If you don't get rejected be like "hey I had a good time talking to you, how bout you buy me a coffee sometime and I'll talk to you some more." or something w/e you make it up.
You're being a FAKE and a LIAR which girls really don't admire and if this is your first impression on them, they probably won't ever like you.
You gotta be a man and striaght up start a conversation with her, like if shes just sitting and doing nothing, you'll actually be doing her a favor by entertaining her by talking to her.
Girls really don't give a fvck about some stranger on msn.. unless they're major AFC girls. She might not even talk to you if she doesn't know who you are, and by getting her msn somehow and randomly talking to her while she doesn't know you, you'll appear as A STALKER.
So my advice is DON'T talk to her on msn AT ALL until you actually meet her in person for the first time.