Did She Like Me and Was I a Jerk?

What Happened:

At graduation, I was sitting in the row behind a girl I didn’t know.

Through the side of my eye, I noticed she didn't stop, looking at me, and waving for a while. Keep in mind, since she was in front of me, she would have had to physically make an effort to look back.

After some time, when I still didn’t respond, she said “hey” to me and told me her name.

I just said “hi” back and didn’t think much of it.

Aftermath:

My female friend, who saw everything, got mad at me.

She said I was being rude and that the girl was obviously trying to get my attention.

Did She Like Me and Was I a Jerk?
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