sociable
This term describes a personality trait characterized by an active desire for companionship and a natural ease in social settings. It carries a positive connotation of warmth and openness, distinguishing it from "extroverted," which is a more technical psychological term for gaining energy from others. A sociable person is not just capable of interaction but actively seeks it out to create a pleasant atmosphere.
In biological and zoological contexts, the word shifts from a personality trait to a behavioral classification. It describes species that exhibit social structures, such as cooperation, nesting, or hierarchical organization. In this sense, it refers to an evolutionary adaptation for survival through group living rather than an individual's preference for chatting.