Spontaneous trait inference
We automatically tag people with personality traits from a single act.
What it means
The unintentional, often unconscious process by which observers infer an actor's personality traits simply from reading about or witnessing their behavior, without any goal to form an impression. Evidence comes from paradigms showing that trait concepts are activated and later bind to the actor in memory even when participants were merely memorizing sentences. These inferences happen fast, with little effort, and can be falsely attributed to the actor as if they were observed facts. The phenomenon helps explain the speed and stickiness of first impressions and is a building block of the correspondence bias. It also produces spontaneous trait transference, where a speaker is tagged with traits they merely described in someone else.
Examples
Reading 'he returned the lost wallet to its owner,' you automatically register 'honest' and later associate that trait with him.
You read a one-line email — 'I'll cover your shift, don't worry' — and file the sender as generous without meaning to, an impression that survives months of ordinary contact.
A candidate mentions rewriting a whole report after spotting one bad figure; before the interview ends you have tagged them meticulous and are reading everything else through that label.
First described in Winter & Uleman (1984).