I decided to post my own list of traits I would choose for a Sim for every Career tract. You’ll notice that only two traits are listed for every career. That’s because for career Sims there are 3 must-have traits: Over-Emotional, Ambitious, and Workaholic. Well, maybe “must-have” is too strong. “Helpful” might be a better word choice if you’re seeking to get those promotions as quickly as possible. But, if you’re patient and are not seeking a promotion nearly every single day, then almost any mix of traits will work for a career Sim.
Over-Emotional: This is the mother of all Sims 3 traits. And Mood is the basic barometer for every single career. Provided you can get your Sim out the door very happy, then the Over-Emotional trait simply amplifies their good feelings by a whopping 25%. It takes about a solid 3 hours of pre-work prepping to really get everything green — a shower, using the toilet, eating a good meal, and finally some Woo Hoo. Woo Hoo is key because it will pump both Social and Fun.
Ambitious: Ambitious Sims’ work performance bar will rise a little faster during the workday.
Workaholic: A Workaholic Sim has the “Work Hard” tone as the default setting. That tone raises the performace bar much faster than the other tones. And the real benefit is that the Work Hard tone doesn’t hit the fun bar as hard as would happen with a non-Workaholic Sim. Choosing “Work Hard” for non-Workaholics really makes the fun meter tank and by mid-workday, they could easily be stressed out.
Business and Political: Charismatic and Schmoozer
Relationships are a biggie in these 2 careers which is why I lumped them together. Neither Business or Political careers have your Sim working on the weekend, so take advantage of that and plan targetted parties with co-workers and your boss.
Criminal (Thief): Athletic and whatever else you want — maybe Friendly to help your relationship with Accomplices.
Criminal (Evil): Athletic and Genius
The Logic barometer doesn’t kick in until level 8 of the Evil tract, but don’t wait until then to start gaining logic.
Culinary: Natural Cook and Green Thumb
Gardening and Cooking just go hand in hand for better results. If your Sim has a utility Sim/Spouse to help out, you can drop Green Thumb and maybe go with Friendly or Charismatic to assist with work relationships.
Journalism: Bookworm and Charismatic
Law Enforcement (Forensic): Genius and Artistic
Law Enforcement (Special Agent): Genius and Athletic
Writing lots of reports is a metric for both tracts of Law Enforcement, so another option is to drop one trait and add Bookworm to aid the writing speed. The Brave trait is also supposed to raise the work performance meter of Law Enforcement and Military career Sims faster. So, there’s more options here than with other careers.
Medical: Genius and Bookworm
Military: Athletic and Handy
Again, the Brave trait is another option.
Music (Rock Star): Artistic and Virtuoso
As soon as your Sim would hit level 10 I would drop Workaholic and just have them play for tips and pick up Loves the Outdoors.
Music (Symphonic): Artistic and Genius
Professional Sports: Athletic and Lucky
Carl mentions on the Guide that this may or may not help with the game record metric. But, even if it doesn’t the Lucky trait can help your Sim in other ways: geting raises, part-time collecting objects, etc. Another option is Friendly or Charismatic to assist with work relationships.
Science: Green Thumb and Handy
Fishing is also a work barometer, but it’s not a high requirement and doesn’t pop up until the end of the career. So, the Angler trait really isn’t necessary.
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Now, once you’ve hit the highest level of a career, if you choose to keep your Sim in that career to continue earning regular hourly raises, the Workaholic and Ambitious traits still hold merit. But, if you’re seeking a different route for your Sim after they’ve hit the top of their career, then I’d recommend giving them the Mid-Life Crisis reward and switching up their traits. If you’d go the self-employment route, then dropping Ambitious and Workaholic makes most sense.