I was a senior in high school just outside of Boston. It was second period AP English, with Mrs. Conley. We all wandered in a little bit after the first plane was hit to the television on, and all we did was watch the coverage. We saw the second plane hit live about 10 minutes before the period ended. It was bagels and books day.
There was a group of about 40 of us in a variety of AP classes, and all 18 of us in that AP English class were a part of it. We all knew each other pretty well and were talkative, but it was nearly silent the entire 50 minute period.
But before we left, Mrs. Conley gathered us all together. We'd only been seniors for about three weeks, but she wanted us to know we had to not get freaked out. The younger students would be watching the seniors, and especially us, the class leaders, the popular kids, the one's whose names they'd heard, to know how to respond. We needed to make sure they knew everything wasn't okay, but us panicking wouldn't make it any better. She meant well, and was probably right. But I was 17 and all I wanted to do was sit in front of a TV and gape and try to process.
Then I had to go to BC Calculus with Mrs. Wynn, and she gave us a brief speech about it, then made us take a test. We heard about the pentagon after we left.
Around fourth period, a nasty rumor started to make its way around school that there were more planes headed for other cities, including Dallas (where my father lived) and Boston (where my mother worked), so I was completely freaked out. I went upstairs to the library, where they had a TV showing the coverage. I tried to call both parents, couldn't reach either, and remained freaked out for the rest of the day. But I tried not to show it, and I made sure my younger sister knew mom and dad were fine, even though I was lying through my teeth.
After school, I had drama rehearsal for Grease. We didn't do anything except stand around the piano while a sophomore named Kiyoshi Matsuyama played Train's "Drops of Jupiter," and we all sang along. It's a nonsensical, crap, idiotic song, but I can never turn it off when I hear it even now.