Quiet During Announcements
Soldiers always show respect, so it only makes sense that they are quiet when receiving orders. When any announcement goes off, whether at the supermarket or a baseball game, you can expect to find them standing quietly, listening and at attention.
Alternative Routes
Curious as to why your Army friend always seems to have multiple routes mapped out wherever you go? Soldiers always have alternate routes planned, as they never rely on one route in case distaster strikes.