alternar
intransitive verb
2 (relacionarse) to mix; socialize; (ir a bares) to go on a pub crawl (familiar); go boozing (familiar)
alternar con un grupo to mix with a group; go around with a group; alternar con la gente bien to hobnob with top people; tiene pocas ganas de alternar he doesn't want to mix; he is not inclined to be sociable; alternar de igual a igual to be on an equal footing