I was in school at the time. It was not a busy class day, so I was at home when the news of the first building being hit went by. At the time, I had the radio on in the morning while working on my computer, my first PC at the time. I heard a bit on the regular news segment about reports of the WTC on fire, I think mentioning a plane reported.
Not even 30 seconds later, I got a call from my father asking if I'd heard about what was going on in New York. "Yeah, a plane hit the World Trade Center."
"No," he said, "BOTH towers were hit."
"You're f**king serious?"
Just like that, I was downstairs like a shot turning on the TV to find a station covering it. That honestly did not take too much effort; it was everywhere, including on the Canadian stations CBC and CTV. I watched for a while, then went upstairs to see what people at my then-discussion forum home were saying (I had joined it earlier that year). I then read about the Pentagon being on fire, and back downstairs I went.
Back upstairs and discussing again, then the first building fell. I was back downstairs just staring in awe at the replays, and I knew the second building was going, so shot upstairs and typed something, saying I'd be back before leaving for the day, and back downstairs.
I finally (and sadly) saw something happen live when the second building fell, then there was news of a crash in Pennsylvania.
I figured at that point the main activity was over, school was still going on, and I still had to go, but I was driving in a bit of a daze at the morning's events.
The old fart who was teaching the first of the day's classes carried on as if he was oblivious to what happened. However, I am sure I wasn't the only one having a hard time paying attention.
Thankfully, the second class at 2:00 turned into a discussion about the day's events; the teacher was someone who is very in tune with the happenings outside our little world (I actually ran into him a couple of weeks ago) and basically led an hour-long classroom discussion about it instead of doing any of the regular class work that day.
After that, I went straight home (I decided anything else could wait that day) to find out the latest updates and later saw that Building 7 fell. I learned later it had been on fire all day since the second tower fell. Later, with the entire family home, we got the entire play-by-play with video highlights that had been airing all day.
I slept uneasy that evening, but life carries on. I still had school the next day.
I also remember gas used to be a whole lot cheaper back then. Nowadays, I doubt I would want to drive as much as I did to school back then.