Girl kept darting her eyes away. Is she shy or interested?

So for a high school showcase thing, I had to present in front of a crowd of like 15 girls. I had taken public speaking classes earlier in my life, so I didn't come off as nervous when I was presenting, I was laid back and made some jokes. Among the crowd, there was this cute girl who was looking at me. Every time I looked at her she darted her eyes away, then would look at me again.

This happened like 2 times, then the third time, she held the stare but I looked away first.

What does this mean, shy or interested?
Girl kept darting her eyes away. Is she shy or interested?
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