"by the looks of them they look former military to me" or "they definitely have a military swagger"
I wouldn't argue that too much - while most civs won't pick up on it, I can count on the fingers of one nose how many times I've missed. Cops and military folk - the serious ones of each - might as well have it printed in large, state-approved letters on their foreheads, it's that obvious to someone who knows what to look for.
(Then again, I can also watch someone move and figure if they've had any "special physical training" - typically dance or martial arts - just by how they move. 11/10 I get the fact of it right, 7/10 or so I can usually tell what style of dancing or fighting. Then again, I do pay more attention than most people.)
Most of us SF types can pick each other out after only a glance, because we know what to look for. General military types take about two seconds, ditto cops.
(One of my best buddies spent six months trying to figure out how I knew he was a cop after just a passing glance. You kidding? You should have it written on your forehead with a marker! At least, to someone like me who pays attention to that sort of thing... I saw him and said "Hi, cop" as I walked back to punch in. I walked back to the counter, he wanted to know how I knew. I said you telegraph it - I even told him what gear he carried and where on his belt, just from his carriage.)
It's something that those of us "in the biz" can pick up on - but it's not something I'd expect a civ to pick up on - unless they were something like a third-generation military brat (or something else that had them growing up on post somewhere...)
- - - Updated - - -
Sure someone has named this
, but cars getting shot and blow up as if there was a c4 charge that was hit :/
Who is John Galt...
Yeah. Can't be anywhere near that many people driving around with empty fuel tanks (liquid gasoline is only marginally flammable. Gasoline vapour is explosive.)