Trait (The Sims 4)

Trait is a personality system in The Sims 4, similar to the trait system in The Sims 3. The personality system as a building block of Sims in The Sims 4 is a combination of trait from The Sims 3 and aspiration from The Sims 2. There are three kinds of traits in the game, i.e. normal traits, bonus traits, and reward traits. Each kind has different ways to earn them.

List of Traits
Normal traits are main personality traits. Sims that are created in CAS may have up to three traits. It was hinted that Sims are not limited to three traits only. Sims may be able to learn additional traits as they progress in the game. These traits affect the Sim's emotions based on certain circumstances, i.e., a Creative Sim may become randomly Inspired, and Sims that Love the Outdoors will sometimes feel cooped up if they stay inside too long. The following list is the traits that are shown in the CAS preview videos.

Emotional Traits

 * Active – These Sims tend to be Energized, can Pump Up other Sims, and may become upset if they don't exercise for a period of time.
 * Cheerful – These Sims tend to be Happier than other Sims.
 * Creative – These Sims tend to be Inspired, can Share Creative Ideas with other Sims, and may become upset if they're not creative for a period of time.
 * Genius – These Sims tend to be Focused, can Share Ideas with other Sims, and may become upset if they haven't improved their Mental Skills for some time.
 * Gloomy – These Sims tend to be Sad, can Sigh to other Sims, and while Sad, gain a boost to their Creative Skill.
 * Goofball – These Sims tend to be Playful.
 * Hot-Headed – These Sims tend to be Angry, can Rile up other Sims, and become Angry when targeted with Mischief.
 * Romantic – These Sims tend to be Flirty and may become Sad if they don't have any Romantic social interactions for a period of time.
 * Self-Assured – These Sims tend to be Confident.
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Hobby Traits

 * Art Lover – These Sims gain powerful Moodlets from Viewing works of art and can Admire Art and Discuss Art in unique ways.
 * Bookworm – These Sims gain powerful Moodlets from reading Books and can Analyze Books and Discuss Books in unique ways.
 * Foodie – These Sims become Happy and have Fun when eating good food, become Uncomfortable when eating poorly made food or uninspired drinks, and can Watch Cooking Shows for ideas. They like to discuss fine cuisine and their favorite recipes with other Sims. 
 * Geek – These Sims become Happy when Reading Sci-Fi or Playing Video Games, may become Tense if they haven't played much, are better at finding Collectibles, and can Discuss Geek Things with other Geek Sims.
 * Music Lover – These Sims gain powerful Moodlets and boost their Fun Need when Listening to Music and become Happy when playing instruments.
 * Perfectionist – These Sims take longer to craft items but tend to make them higher quality, gain powerful Moodlets after crafting a high quality item, and gain negative Moodlets after crafting a low quality item.

Lifestyle Traits

 * Ambitious – These Sims gain powerful Moodlets from career success, gain negative Moodlets from career failure, and may become Tense if not promoted.
 * Childish – These Sims gain powerful Moodlets from watching the Kids Network, become Playful when playing with Children, and become Happy when playing with Children's toys.
 * Clumsy – These Sims tend to fail more often at physical activities and tend to laugh at failure instead of becoming upset.
 * Glutton – These Sims have a greater negative reaction to Hunger, always enjoy eating, no matter the quality of the food, and will eat Spoiled Food.
 * Insane – These Sims can Talk to themselves and have unpredictable Emotions.
 * Lazy – These Sims gain powerful Moodlets from Watching TV or Napping as well as from Comfortable furniture, become Fatigued more quickly from exercise, and grow Tense when performing household chores.
 * Loves Outdoors – These Sims can Enthuse about Nature to other Sims and become Happy when Outdoors.
 * Materialistic – These Sims can Admire and Brag about Possessions and become Sad when they haven't purchased a new item for a period of time.
 * Neat – These Sims become Happy and have Fun when performing household chores, can have a Cleaning Frenzy, and become really Uncomfortable in dirty surroundings.
 * Slob – These Sims are not affected by dirty surroundings, make household items dirtier faster, and can Rummage for Food in garbage.
 * Snob – These Sims can Critique Work on low quality items, are bored by "low brow" television, and gain Confidence around other Snob Sims.

Social Traits

 * Bro – These Sims can Bro Hug other Bros, gain Confidence around other Bros, and become Energized from Watching Sports.
 * Evil – These Sims become Happy around Sims with negative Moodlets, can Laugh Maniacally and Discuss Evil Plans, and become Angry when interacting with Good Sims.
 * Family-Oriented – These Sims become Happy around family members, become Sad if they don't interact with family for a period of time, and can Boast about Family.
 * Good – These Sims become Happy around Sims with positive Moodlets, can Donate to Charity, become Sad with interacting with Evil Sims, and can Discuss World Peace.
 * Hates Children – These Sims become Angry around Children, become Tense after Try for a Baby, and can be Mean to Children.
 * Loner – These Sims become Happy when alone, do not receive negative Moodlets when their Social Need is low, become Tense around strangers, and become Embarrassed more often by social rejection.
 * Mean – These Sims become Happy when being Mean or Mischievous to other Sims and become Confident after winning a fight.
 * Noncommittal – These Sims become Tense after a while in the same job or relationship, become Happy when they Quit a Job or Break Off a relationship, take longer to Propose, and can Discuss their Fear of Commitment.
 * Outgoing – These Sims gain powerful Moodlets from Friendly socialization, have their Social need decay quickly, and gain more negative Moodlets when their Social need is low.

Bonus Traits
Bonus traits are given to Sims when they choose an aspiration in CAS. This trait sticks to the Sim even if the aspiration is later changed. Bonus traits are only complement for the original aspiration to help Sims achieve it. Below is the bonus traits that are given from choosing certain aspirations.


 * Athletic: High Metabolism – It is easier to stay fit and trim when you have High Metabolism.
 * Creativity: Muser – Musers get better boosts to their skills when they're inspired.
 * Deviance: Dastardly – Dastardly Sims perform stronger and more successful mean interactions.
 * Family: Domestic – Domestic Sims will see their familiar relationships grow stronger faster.
 * Food: Essence of Flavor – Sims with Essence of Flavor make higher quality food and drink.
 * Fortune: Business Savvy – Business Savvy Sims earn more money from their careers.
 * Knowledge: Quick Learner – Quick Learners build all skills a little bit faster!
 * Love: Alluring – Alluring Sims are more successful at romance than others.
 * Nature: Collector – Collectors can find rare collectibles more often!
 * Popularity: Gregarious – Gregarious Sims build friendly relationships faster.

Reward Traits
Reward traits are given to Sims as an award after fulfilling an aspiration.


 * Athletic
 * Bodybuilder: Long Lived – Long Lived lets Sims live longer lives, barring any accidents.
 * Creativity
 * Painter Extraordinaire: Paintbrush Revolutionary – Paintbrush Revolutionaries can see the world in a new, inspiring way.
 * Musical Genius: Piper – Pipers know an arsenal of songs that have significant power over others.
 * Bestselling Author: Poetic – Poetic Sims can capture life itself in a book, and wield it to bring back someone they've lost.
 * Deviance
 * Public Enemy: Mastermind – Masterminds know just the right things to say to cause anger, sadness, and jealousy in their opponents.
 * Chief of Mischief: Tormentor – Tormentors can sabotage almost anything, be it an object, or another Sim’s best efforts.
 * Family
 * Successful Lineage: Vicarious – By being Vicarious, your Children's skill gains can contribute to your own!
 * Big Happy Family: Matriarch/Patriarch – Matriarchs/Patriarchs provide skill boosts whenever they are around their children.
 * Food
 * Master Chef: Fresh Chef - Fresh Chefs always make the highest quality food, and it never spoils!
 * Master Mixologist: Potion Master – Potion Masters can mix potent drinks which can sway the drinker's emotions.
 * Fortune
 * Fabulously Wealthy: Shrewd – Shrewd Sims receive a direct deposit each week based on their Household Funds.
 * Mansion Baron: Thrifty - Thrifty Sims receive a 10% rebate on all Build Mode purchases made each week. Rebates will be directly applied to Household Funds.
 * Knowledge
 * Renaissance Sim: Professorial – Professorial Sims can write helpful manuals about any skill they're well-versed in.
 * Nerd Brain: Handy – Handy Sims can instantly Fix and Upgrade any object.
 * Computer Whiz: High Tech – Webmasters get the most out of their computers, unlocking extremely useful ways to use them.
 * Love
 * Serial Romantic: Player - Players will never cause other Sims to get jealous, no matter what they do.
 * Soulmate: Companion – Sims with a Companion have special interactions with their spouse that help ease the trials of life.
 * Nature
 * Freelance Botanist: Naturalist - Sims that are Naturalists don't need to fear fire; it won't touch them, and they can extinguish it with ease.
 * The Curator: Appraiser - Appraisers can sell collectibles, like Metals, Crystals, Elements, and Fossils to the Simsonian Museum for extra money.
 * Angling Ace: Angler's Tranquility - Sims with Angler's Tranquility will find that all of their problems seem to melt away while they are fishing.


 * Popularity
 * Joke Star: Hilarious - Hilarious Sims can never go wrong with a joke, and have a few extra-special ones up their sleeve.
 * Friend of the World: Beloved – Everyone remembers a Beloved Sim! Their relationships never fade.
 * Party Animal: Perfect Host – Perfect Hosts get a boost to the score of any social event they throw.