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.
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.
Gloomy – These Sims tend to be Sad, can Sigh to other Sims, and while Sad, gain a boost to their Creative Skill.
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.
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.
Foodie – These Sims become Happy and have Fun when eating good food, become Uncomfortable when eating bad food, and can Watch cooking shows for ideas.
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.
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.
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.
Clumsy – These Sims tend to fail more often at physical activities and tend to laugh at failure instead of becoming upset.
Childish – These Sims gain powerful moodlets from watching Kids’ Channel, become Playful when playing with children, and become Happy when playing with Children’s toys.
Cheerful – The Sims tend to be Happier than other Sims.
Bro – These Sims can Bro Hug other Bros, gain Confidence around other Bros, become Energized from Watching Sports.
Bookworm – These Sims gain powerful Moodlets from reading Books and can Analyze Books and Discuss Books in unique ways.
Art Lover – These Sims gain powerful moodlets from viewing works of art and can Admire Art and Discuss Art in unique ways.
Ambitious – These Sims gain powerful moodlets from career success, gain negative moodlets from career failure, and may become upset if not promoted.
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.
The folks over at extracted the string file from The Sims 4 CAS Demo, and from this information, I have put together a list of Traits, Aspirations, and (possible) rewards.