Spanish class, we didn't have tv's in every room in high school, and had to listen to the new reports on the radio for spanish and chemistry. I was only 15 at the time, and had been on the observation deck of them the previous fall during Columbus day weekend. Heard both towers go down over the radio, then by English class we had a TV. I remember F-16s and our trusty A-10s stationed near by flying CAP over the area. When I heard about the pentagon, I walked out of chemistry class to call my mom who was working the tallest towers at the time in Philly to tell her to leave, only to learn she was sent home already. My cousin lived two blocks from the towers, he was out of his apartment for 3 months. It took them two weeks to be able to go back and get some stuff to live in a hotel for 3 months.
I pretty much kept to myself and stewed with anger, not being old enough to do anything I finally knew what it was like for teenagers of WWII felt like and how they would lie about their age to enlist. Still weird not seeing the towers, and still get worked up.