The Sims 3
50 Achievements
1,000
30-35h
Expertise
Reached level 10 in a Skill.
25
How to unlock the Expertise achievement in The Sims 3 - Definitive Guide
There's also a Karma Power that gives 10x exp, I forget the name, but it has a picture of a brain. You must unlock it first.
Your sims can learn and practice different skills throughout the game. Not only will skills help you get promotions in jobs but each one has special things associated with them like having the ability to write great books or catching fish easier. The following are all the skills that are in the game and how you can improve them:
-Handiness - You can practice this skill by fixing a broken appliance or reading books.
-Fishing - You can practice this by either fishing in a pond, read fishing books or watching the fishing channel on TV.
-Writing - Practice by either practicing writing, going to writing class or writing a book.
-Charisma - You can practice this by going to a charisma class or practicing speeches in a mirror.
-Gardening - You can practice this skill by reading gardening books, harvesting fruits/vegetables and by tending to your garden.
-Logic - Your logic skill will go up by reading logic books, attending logic class, playing chess and looking through a telescope.
-Cooking - Your cooking skill increases when you make food, read cook books and watch cooking shows.
-Guitar - Your guitar skill will increase when you play the guitar or you read books about the guitar.
-Athletic - Do things like running on a treadmill or doing TV workouts to get this skill up.
-Painting - You can either read books or paint on an easel to get this skill up.
You will notice that when you practice a skill a blue bar goes above your head. This blue bar shows you how close you are to the next skill level. The amount of time it takes to gain a skill level takes longer with each skill level gained. Keep practicing a skill until it reaches level 10 to unlock this trophy. The following are traits and lifetime rewards that can help achieve levels faster.
-Swift Learner - Lifetime reward
-Artistic - Trait (For Painting skill)
-Genius - Trait (For Logic skill)
-Green Thumb - Trait (For Gardening skill)
-Handy - Trait (For Handiness skill)
-Natural Cook - Trait (For Cooking skill)
-Virtuoso - Trait (For Guitar skill)
-Athletic - Trait (For Athletic skill)
-Charismatic - Trait (For Charismatic skill)
-Angler - Trait (For Fishing skill)
-Bookworm - Trait (For Writing skill)
It takes a long time to reach level 10 in a skill so pick a skill that is useful such as cooking or handiness. Cooking is one of the easiest skills to level because you gain cooking experience from cooking meals for yourself. Handiness is also a good skill to level because stuff breaks a lot. At midnight sometimes instead of getting karma points some/all of your plumbing and electrical stuff will break which provides a massive skill boost for hardiness. Because this is a long achievement I recommend turning aging off so you don't have to worry about how long it takes to get.