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

“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.”

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

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

What nonsense did you hear today in India that made you laugh?

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

“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.”

“You need some tea!”

Why would my husband cheat on me with an ugly fat woman?

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

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.

“I need to do laundry.”

Do women lack the mental strength to succeed at STEM? There seems to be few women at STEM and more women leave STEM after a time of working at it. How can it be just sexism if women aren't banned from entering?

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

Do that and you can ground your characters quite quickly.

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

What do flat Earthers think causes the "magical downward force"?

“It’s not looking at you.”

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

Create a context between this character and other characters.

Why are you a Muslim? Why is it Islam for you and not something else?

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

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?”

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

What is so great about Jiraiya?

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

“Claire! Why are you still up?”

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

Do many women shave their vaginas?

“I’ll put the kettle on.”

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

“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.”

What steps have you taken to stop being a targeted individual by gang stalkers? What has worked, what would you have done differently?

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

“Exactly.”

“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.”

What is the Replika app, and how does it work?

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?”

“Claire, I—”

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.

Why do some children hate their parents?

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?”

“But they’re cold!”

“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?”

What are some questions obviously just asked for sexual gratification?

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

“No way.”

“Cute girls?”

What is a common thought that keeps people up at night? Why do some people experience this?

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

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

“Tart!”

Why are fewer English people going to their local pubs for a drink? Are they aware that many pubs are shutting down due to lack of customers?

“Nary a cute boy in sight.”

“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.

“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…”

What are your darkest taboo confessions?

“Exactly.”

“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?”

“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.”

What is your juiciest sex story?

“Perv.”

“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 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.”

“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.”

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

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

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

“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—”

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

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

Essentially, what you do is show the character:

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