When writing a novel, how can a character be developed well, but QUICKLY?

“Nary a cute boy in sight.”

Doing something they enjoy, that expresses their personality, and that is in some way unusual or noteworthy;

“You know what? Never mind,” May said. “I am way, way too drunk to be having this conversation.”

What is the experience of wearing a school uniform every day? Do people typically get used to it or dislike it?

“Hang on, are they playing ping-pong?”

“Exactly.”

“No, about the cat. You don’t need a cat. You remember what happened to your spider plant, right?”

Zohran Mamdani’s surprising surge fueled by pocketbook promises, social media savvy - New York Daily News

“No way.”

“Nope, I mean a cat followed me home. A black cat, to be exact. All the way from the club. Probably still out there, for all I know.”

May pushed Claire’s feet away. Claire rose to peer out the window. “Huh. It’s still there.”

How did you get to be a leftist?

“Number one, it’s not porn, it’s ecchi, and number two, why would I waste a perfectly good Saturday doing anything else?” Claire pulled at her tea and sighed. “The only thing that could make this day better is if you'd come home with some cute boy, so that after you kicked him out tomorrow I could live vicariously through you.”

In the kitchen, Claire set out a battered pair of mugs: May’s black, with “PEBKAC: Problem Exists Between Keyboard and Chair” in white letters; Claire’s white, with “This must be Thursday. I never could get the hang of Thursdays” in dark blue. She carried both mugs into the living room. “A moggie followed you home? Is this some weird Internet slang I’m not current on?”

The agent had only one bad thing to say (the synopsis was crap; writing synopses is hard!), but praised the characterization and particularly how well we introduced a character’s personality quickly.

Fans slam Gearbox CEO Randy Pitchford's message to "cost sensitive" fans - Eurogamer

“From the look of you, if you try to sleep now, you’ll spend the next three hours hanging onto your bed trying to stop the world spinning. Since you’re not going to sleep anyway, you might as well keep me company.”

Essentially, what you do is show the character:

“They are! He broke the rules of the boarding house by petting this character while she was in cat form, so they invoke the ancient rules of single combat via ping-pong, and—”

Why do liberals have a problem with masculine men like Andrew Tate?

“About wearing more clothes? How am I supposed to catch any fish if I don’t show off the bait?”

“Claire! Why are you still up?”

“So you didn’t meet any cute boys at the club tonight?” Claire called as she bustled about the small kitchen.

Can AI render a high resolution image from a low resolution image?

They both burst out laughing. “I’m right, though,” Claire went on.

“It’s not looking at you.”

“I’ll put the kettle on.”

Are Turks ashamed of their Islamic heritage?

Claire, one of May’s three flatmates, former university roommate, and best friend in all the world, shrugged expansively. “It’s a Saturday night. What else would I be doing?”

“Exactly.”

“Well, maybe if you didn’t spend all day reading—” May prodded the book with its garishly-coloured cover with her foot. “Bizarre comic book porn…”

Jared Leto Accused of Sexual Misconduct by Multiple Women, Denies Allegations - People.com

“Yep!” Claire chirped. “There’s this schoolboy, see, and he’s homeless, so he lives in this boarding house that used to be a hot springs bathhouse, which is cheap because it’s haunted, so he decides—”

“Yes way. It’s washing itself under the street light. Uh-oh, I think it spotted me. It knows I’m watching it. I swear it’s looking at me.”

“May! You’re home late! Early, I mean. Well, I mean, it’s early in the morning, but you’re home before I expected. Er, after. Before?”

5 health issues that can occur due to Vitamin D deficiency - Times of India

“I need to do laundry.”

“Well, maybe if you’d wear more clothes, they wouldn’t feel so cold. Hussy!”

“Thanks. You’re looking pretty ratty yourself. Have you been in that bathrobe all day?”

What fiber optic setup would you recommend for a small business network?

Here’s how we presented the character Claire when she was introduced, which the agent particularly singled out:

“Perv.”

May studied the black and white comic panels. “Oh, my. She looks…anatomically implausible. What is she doing to that poor man? Wait, are those cat ears?”

Why are there posts saying the T in LGBT should be dropped? With what is happening in the US and beyond against the trans community cause for concern that if this is accepted could it be deemed acceptable to start on the LGB community again?

Claire sat back down, legs tucked elegantly beneath her. “You are looking a bit sloppy,” she said, inspecting May through narrowed eyes.

“None of those either. Look upon the wasteland that is my sex life, and see that it is barren. Naught but a moggie followed me home.”

“I try not to, but thank you for reminding me. I know I don’t need a cat. I don’t want a cat. What would I do with a cat?”

Russell Wilson: Nothing changes for me with Jaxson Dart here - NBC Sports

“You don’t need a cat. You can’t take care of a cat. You can’t take care of a ficus.” Claire flopped on the other side of the sofa and wriggled her feet beneath May.

Create a context between this character and other characters.

“I’m just a fan of your catch and release program.”

“I know! That’s why I’m putting them under you!”

“You need some tea!”

“Why is that always your first suggestion? I do not need some tea. It’s three o’clock in the morning! If I have tea, I’ll never get to sleep.”

Do that and you can ground your characters quite quickly.

Engaging in conversation that also shows something about their intelligence, personality, wit (or lack thereof); and

“It’s a cat. All cats are weird.” May sipped from her mug, inhaling the warmth. She closed her eyes. The room spun. She opened them again. “Ugh. I think I drank too much.”

“Fine.” May collapsed into the warm spot Claire had just vacated.

May yelped. “Hey! Your feet are cold!”

“But they’re cold!”

“Cute girls?”

“Yuuna and the Haunted Hot Springs!” Claire turned the book around.

After Eunice and I finished London Under Veil, I entered the first chapter in a contest at a convention where you could submit something and have it critiqued by a professional book agent.

“I’m glad my sex life is so entertaining.”

“Tart!”

“Claire, I—”

“Damn straight. So get to it! This time next week, I want to hear some moans coming through that wall.”

“I’m serious!” Claire said. “It’s staring straight at me.” She let the curtain fall. “Weird.”

“I don’t know. Partying. Going to a pub. Anything besides sitting on the couch reading…” She squinted. “What the hell are you reading?”