Questions & Answers about È socievole: fa amicizia con tutti.
Why is it amicizia (singular) when the English translation says "makes friends" (plural)?
How do we know if socievole refers to a man or a woman?
We would only know from the wider conversation. Adjectives that end in -e in the singular, like socievole or intelligente, have the exact same form for both masculine and feminine subjects.
Why isn't there a subject pronoun like lui (he) before è or fa?
Italian frequently drops subject pronouns because the verb form already tells us who is doing the action. You generally only add words like lui or lei when you need to emphasize the subject or clear up ambiguity.