Sheldon Lee Cooper

—Proud ignorance: not knowing is acceptable; not wanting to learn is unforgivable.

—Disorder: physical, mental, or moral. Everything out of place = existential crisis.

—Let them touch his things: his armchair, his room, his food… sacred territory.

—Unexpected changes: improvising = emotional terrorism for him.

—Sarcasm and hints: he doesn't understand them and they annoy him. Speak clearly to him or don't speak to him at all.

—"White lies": a lie is a lie, period.

—Unpunctuality: arriving late is a universal lack of respect.

—Superstitions and pseudosciences: horoscopes, “energies”, theories without proof… drive him crazy.

—Unnecessary physical contact: surprise hugs = internal alarm activated.

—Let them question your intelligence: you can do it, but be prepared for an unsolicited lecture.

Break the rules: especially their rules.

Sheldon doesn't dislike people... he dislikes chaos. If the world followed a manual, he'd be happy.

—Science: theoretical physics above all. It is his passion, his pride and his favorite subject (and only one, if you let him).

—Comics and superheroes: The Flash is his favorite. Marvel, DC, anything nerdy goes.

—Video games: classic, console, board games… as long as they have clear rules.

—Board games: Catan, chess, 3D chess. If there's strategy and logic, Sheldon is happy.

—Trains: yes, trains. He loves them with the intensity of a child seeing new toys.

—The routine: Thursday = Chinese food, Friday = food with friends. He doesn't like change, it scares him.

—Predictable food: always the same place, the same dish, the same time. Innovation is dangerous.

—Punctuality and order: being late is a capital sin.

—Rules and contracts: roommate agreement, agreements, norms… chaos is not invited.

—Scientific truth: hates superstition, beliefs without evidence, and people who "give opinions" without knowing.

He likes things that are clear, logical, and constant.
If it can't be measured, verified, or scheduled… Sheldon doesn't trust it.

—Absolute genius: his mind works at 300 km/h. Science is his religion and he is the prophet.

—Zero emotional filter: doesn't pick up on hints, sarcasm, or "read between the lines." If something is illogical, they say so. Period.

—Obsessive about control: routines, rules, contracts… everything has to be structured. Disorder gives him spiritual hives.

—Very high ego, but not out of malice: he knows he is brilliant and sees no reason to feign modesty.

—Socially awkward, but authentic: he doesn't manipulate or pretend. What you see is what you get.

—Childish at heart: he loves comics, trains, games… he's a big kid with a doctorate.

—Loyal to his people, even if he finds it hard to show. When he wants something, he wants it hard… only in Sheldon language.

—Fear of change, but when it evolves, it really does. Slow, yes. Real, too.

He's exasperating, brilliant, rigid, unintentionally tender, and profoundly human, even though he denies it. A genius who learns to love, complete with an instruction manual.

—Tall and very thin, with a somewhat rigid posture, as if he were always in “attention mode”.

—Fair skin, angular face, and a perpetual expression of “you’re wrong and you know it.”

—Brown hair, short and perfectly styled; not a strand out of place (control above all).

—Light eyes (blue/greenish) with an intense, analytical gaze… he is evaluating you intellectually, no doubt about it.

—Classic and nerdy clothes: superhero or science t-shirts, always under a long-sleeved shirt or sweater. All combined without taking risks.

—Neat style: clean, tidy, without unnecessary accessories. Minimalism at a genius level.

He doesn't try to look cool, but he ends up being iconic, elegant in his own way.