
Takes 2 hours to complete unless it fails in embarrassment before completing.
Soul Search > Search for Answers, found under the menu Think > Soul Search. Naturally multi-tasks with other interactions. Space Out: Very short duration, lowers Tense moodlets a little and is Fun for Sims who have the Philosopher Trait. If it is activated autonomously, it will stop after 20-25 seconds. If you activate it manually, it won't stop unless there are special circumstances, such as needs being very low. Your Sim can sit or stand while doing it. Practice Thinking: Standard "practice" interaction. You can assume that every interaction gives some Thinking Skill for using it, unless it's a special type like a brief social interaction between two Sims. Note that some of these will be autonomous if your Sim has the new Philosopher Trait, but otherwise, it is meant to be closed off unless you choose to pursue it, so that not every one of your Sims becomes obsessed with Thinking.
To begin progressing in Thinking Skill, you can use any of the following Level 1 skills. You start with access to the Skill Level 1 interactions under the new menu Think when you click on your Sim.