Do you have any mutual friends? Perhaps you could ask somebody else if they knew what she thought of you.

You could joke at the idea of the two of you together and see how she reacts.

Think about how she would react if you told her how you felt. If you think your friendship could survive then perhaps just go for it? If it's too much of a risk perhaps less obvious approaches would be worth a try, such as the joke thing I suggested.

__________________
"When I was 4 years old, they tried to test my IQ.
They showed me this picture of 3 oranges and a
pear. They asked me which one was different and
did not belong. They taught me different was
wrong."
- Ani DiFranco -