This happened in my last year of high school. I had a crush on a girl in band – I played clarinet, she played flute. We were both in the first row, so we sat directly across from each other, and naturally looked at each other during rehearsals.
At our school, all the graduating band kids were allowed to write a short blurb which would be included in the program for our spring concert. Anyways, concert day rolls around, and I'm hanging around backstage, flipping through the program waiting for the parents to start arriving. I eventually get to her blurb – her favourite band memory was "looking across at a certain clarinet player".
Turns out it wasn't me.