The Psychology of First Impressions: Why You're Judged in 100 Milliseconds

Research shows first impressions form in under 100 milliseconds and are surprisingly accurate for certain traits. Faces are judged on trustworthiness, competence, and likability before a word is spoken. These snap judgments affect hiring, dating, politics, and commerce. Once formed, first impressions are extremely resistant to change (confirmation bias). Digital first impressions (profile photos, website design, email tone) matter equally. The practical takeaway: invest heavily in your initial presentation — it disproportionately shapes all subsequent interactions.