In general, a Drow is shorter than the average elf. They still carry what are clearly elven traits, but their dark skin, silvery or fiery hair, and often red eyes are a clear indication that they are something different as well. Their builds are also stouter than most elves, and they seem more human in structure. If they hide their ears, it is easy to mistake them as darker humans.
Drow strive to be perfect. They despise the high elves and their silver queen, and in quiet jealousy, handed down for generations, constantly strive to be even more perfect than any of them could ever even hope to be. This constant striving for perfection permeates the life of every drow, and is something that is taught rigorously throughout their lives.
Major language groups and dialects
Drow speak an ancient dialect of high elvish. Often it sounds like someone would be speaking an archaic, outdated version of a language with older grammar and expressions, with some unique slangs added.
Culture and cultural heritage
The Drow all do their utmost to look perfect. Their entire society is built around showing that they are the most perfect, and that none equal them in perfection. Consequently, the art of passive-aggressively coaxing your enemies into cracking their masks of perfection is a very classic political game that the Drow play.
Shared customary codes and values
Drow value perfect behaviour. To upworlders, it would be a blend of honor, duty and self-service, but the Drow call it "perfect behaviour". This means that one respects the hierarchy, behaves courteously to peers and stangers, but actively works to develop one's own agenda. It's not unusual that a child backstabs their parent to take control of their holdings. Surprisingly, however, a drow parent being backstabbed and unable to see it coming may be feeling quite proud of their child for a perfect execution, despite all the upset that they got backstsabbed.
Common Etiquette rules
Courtesy and politeness is seen as a must, and maintaining face is an utmost social importance. Showing your kindness, gracefulness, and perfect behaviour is what all Drow strive for.
Common Dress code
Drow dress extravagantly, dramatically, and multicolored. They look for anything that they can dress in that "heightens their perfection".
Drow see extravagant colors and unblemished, pure appearances to be the most beautiful. They constantly seek to look as perfect as they can, even though it may be next to someone who they are very close to. Indeed, they often feel like they have to look their best constantly for the one they love.
Drow, having come originally from the Silver Spires, holds a social structure remnant of their high elven ancestors. Therefore they, too, covet women far more than men, and here too lesbian relationships are a common occurrence. However, the drow are driven by passion and emotion rather than cold logic.
Dark elves covet perfection. Items they covet are often cut gems, perfectly crafted handiwork like clothes or maybe a perfectly balanced sword or pets of beasts from the World Caverns.
Drow often look for politically powerful partners, but because they feel emotions much closer to how humans do, they can just as well find people they genuinly love, and look to establish a romantic relationship with.
Ironically, the Drow are led by the Dark Queen, a position of power that is held by the one deemed closest to perfection. Though on the front a democratic rule, the elections are rigged every ten years they occur, and the position of Queen is something every Drow covets. Being leader of the Drow is just as much a mark of true power as it is a clean mark on your forehead.