In the tomb of the unknown soldier they even tell veterans to salute when the ceremony goes on. Civilian clothes and all. I was on a cruise when they celebrated veterans, and they encourage those who serve to salute, but like I said it's usually not done loosely. I once went to Normandy. Awesome experience. When I saw all the graves before me, I hand saluted out of respect for them. It was a situation that was okay to do even in regular clothes and out of the military. If I go to a BYU basketball game or a Utah Jazz game and they're playing the national anthem, I put my hand over my heart.