The term "sanguine" refers to a personality trait characterized by optimism and a positive outlook on life. People who are sanguine tend to see the bright side of situations, often believing that things will turn out well. This trait can lead to resilience in the face of challenges, as sanguine individuals are more likely to focus on solutions rather than problems. In psychology, the sanguine temperament is one of the four classical temperaments, alongside choleric, melancholic, and phlegmatic. Sanguine individuals are often sociable, enthusiastic, and lively, making them enjoyable companions. Their optimistic nature can inspire others and create a positive atmosphere in social settings.