Animals that aren’t social tend to treat each other with total hostility. Some species need elaborate courtship rituals to overcome their natural hostility to each other. For most of the year, these critters will fight or run from pretty much anything they run into, only the need to procreate short-circuits their defensiveness.
So, unless you immediately think “kill or be killed” whenever you seen another human without being in heat, you fit the biologist’s definition of social.
Being bored at parties is a different matter … many biologically social species don’t associate in large groups. Lions are social and the largest pride is probably a lot smaller than a decent gathering at a suburban barbecue. Bear families also tend to be pretty small.
Few mammals are entirely comfortable around individuals they’ve never met. Wolves travel in packs, and regard strangers with suspicion. Male gorillas get really upset at interloping bipeds, and chase them away, or take a long time to meet new ones. Gorillas would not be happy in a Wisconsin bar. Large human cities are a very unnatural environment, with little opportunity to build trust in the vast majority of the people we meet. So, human societies force us to be much more social than our biologies are prepared for.
Nothing I write about any person or group should be applied to a larger group.