Personality traits Īdult Sims created in Create a Sim may have up to three traits. The Observant reward trait allows a Sim to instantly learn the traits of other Sims. For example, asking a Sim's career will reveal if they have the ambitious trait, or flirting with a Sim may reveal the romantic trait. Learning traits See also: Trait conflictĪs Sims socialize with others, they may reveal their traits from certain interactions.