Yeah, sure. Wear them like David says. I wouldn't go to a Burns Supper or Tartan Ball in either, but I don't think you're speaking of that. I used to have a ghillie shirt that I wore on Sundays to the games (it was a little more laid back on Sundays), and I had a friend from Aberdeen who wore one, too. I liked it; it was all cotton, so it was very comfortable.

For anything else, you can always change the shirt, you know, add a collar and tie or a sweater.