Haha, these are classic!
Mines rather sad
I worked at this gadget place for around 2 months before they closed down when I was 16-17 and I was working there for around a month, and while stacking shelves, I noticed this really pretty/cute girl looking at me from across the shop, and she just kept smiling at me, and I was smiling at her.
Must have been about 3 minutes or so, as I went to and from to get stock, and then...she was gone
Why didn't I go up to her!!!
That, I will never know. I always have missed opportunities though...
Another one was in college, and I was waiting for a room to become empty, because another class was in there before hand, and this, again, a very pretty/cute girl was waiting for a mate.
They seemed to be getting up and so I made a comment saying "oh, I think their coming out now", and then they all sat down again and i went "oh...oka, maybe not" and started laughing and so did she.
They then came out though and she smiled and left.
Then, I didn't see her for ages, and then around the corner as I was walking down a corridor comes her, and I recognised her straight away, and we again smiled at each other as we passed, and I said "hey".
Again, another missed opportunity, because it was nearing the end of my years there, and I never saw her again