socialiser vs doer

socialiser and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
socialiser	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of socialiser; that is, doer is a word with a broader meaning than socialiser:

Other hypernyms of socialiser include actor, worker.

socialiser (noun)	doer (noun)
a person who takes part in social activities	a person who acts and gets things done