I was a senior in high school. I watched the launch live on a small tv in a wardrobe room of the ROTC facility, as at the time I was in ROTC.

I was stunned, so I stepped out and got the instructors who were in their office.

We all crowded in to watch the broadcast as they kept playing what happened over and over. It was definitely a “where were YOU when X happened?” kind of moment.

(It was a 2nd period “free” time slot but I was granted permission to schedule it as I was considered a good student, so I did independent study, hence sitting in the wardrobe room watching the launch while doing some homework.)