Did I creep her out?

So I was walking in the tram station and I saw a girl in front of me that I kinda knew from university and she was friends with some friends of mine.

She was a normal girl but I did check her out but only for like 4-5 seconds and because she happened to be in front of me. She did not smile or do anything.

Afterwards I went on my own business and positioned myself a bit far from her out of my direct sight randomly. I caught her looking quickly at me with the corner of my eye and then looking back.

Another 4 minutes or 5 later I noticed her leaving the station and taking a bus. So did I creep her out? She can brag me to my friends and make me look like crap.
Did I creep her out?
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