Synonyms for Social (same or very similar meaning)
WordNet sense 1 (a party of people assembled to promote sociability and communal activity):
mixerWordNet sense 2 (relating to human society and its members):
societalWordNet sense 3 (inclined to or conducive to companionship with others):
sociableWordNet sense 4 ((of animals) tending to form a group with others of the same species):
gregariousWordNet sense 5 (characteristic of or befitting a friend):
friendlyFrom the ODE community, based on WordNetadd/edit