"Anything with pineapple print on clothing while on a cruise means you are swingers"

"Military uniforms tell you a lot about the person wearing them beyond their name and rank. You can tell what campaigns they've been involved in, what professional military education courses they've completed, their proficiency with weapons, their occupational specialty and their level of proficiency, how many years they've served, and (at least in the USAF), their MAJCOM, wing, and possibly squadron of assignment.

Another little secret of the military dress code has to do with hats. A person in uniform wearing a hat indoors indicates that they are armed. The weapon may be concealed or carried openly, but it is a fast way to determine who in a room has weapons."

"I'm Jew(ish). I live in Scotland, and there's not many of us around, but I've been to synagogue and lived in Israel, and I can easily spot a married Orthodox Jewish woman out of a crowd, mostly by her wig, but also her dress style to an extent.

It's such a natural distinction for me that I didn't realise it wasn't immediately obvious to others until I was driving with my friends by Loch Ness and we saw a big gathering, (mostly behind trees) and someone said something along the lines of "I wonder what's going on there" and I replied "looks like an organised Jewish event" because I saw several mothers and their kids by the road and I instantly recognised them as Orthodox Jews. My friends looked at me as if I had a supernatural Jewdar because there weren't any obvious men in sight wearing heavily recognised religious clothing (think kippahs- headcaps, or payot- hair curls, ect.)"

"Here in Japan tattoos are related to the Yakuza. Meaning, whether you are a Yakuza or not, people with tattoos are not allowed in numerous establishments like public baths, etc. Yakuza don't generally flash their tattoos to the public so they generally use long sleeve shirts. Sometimes when they use short sleeves clothing they would use arm sleeves to cover up the arm tattoos. It's a dead giveaway that this people are, or have been, mafia related."

"Head coverings vary among observant Muslim women from different countries. The kind many people think of is the Saudi Arabian style that has become more popular in the last decade or so. A cool one is the different traditional head coverings between Kazakhs (white scarf with a part tied back like a nurses cap), Uighurs (colorful scarf and tied in front or behind the neck), and the Hui (a cap with cloth coming down the sides) — all groups found in China (depending on how you feel about groups leaving to be independent). I think it’s like people from different countries tying knots."

"Oftentimes student nurses will wear one color of scrubs to stand out from professionals during clinicals. My color was hazel grey."