Well, the easiest way is to find one of your friends who know
her/ one of her friends... and ask your friend to arrange a
drink/coffee as a group after class... Is'nt that simple?
If none of your frd's frd's know none of her/frd's frd's, then...
you have to start up a conversation with her.
Topics can be...
1) (In the lecture hall, sit next to her... before the lecture
starts, talk to her)What do you think of this lecturer, ie
something funny abt the lecturer... or any papers that's coming
up
2) (At the bus stop) Just look at her and say you're in my so-so
lecture. Sorry I missed out on the lecture today as I fell asleep,
mind if I borrow your notes?
3) (At the cafeteria) Well, this one is really awkward... but ask
if you could borrow $5. I think she would recongize that you're
from her class and lend it to you... but this is quite hard to
do... might as well just confront her and ask for her number!
haha...