I was in Portland, Washington attending an industry conference, a long way from home in Pennsylvania. Just finished my shower and picked-up a recorded phone message on the hotel phone, it was my wife relating that airplanes had crashed into the Pentagon and Twin Towers. I can still remember the way her voice was steady, but the emotions crept in towards the end of the message. I had a heck of a time getting a line to call her back (all telephone circuits were 100% busy).
Finished dressing and went to meet my boss, he was pretty succinct "We're at war". Our company had another engineer on his way to the conference, flying out that morning... He ended-up in Chicago and drove back to Pennsylvania, lucky.
Mostly we watched events unfold on the TV and talked quietly. It still seems like something out of a grade B Hollywood movie.