I am confused and frustrated, to is do but when used is not proper? Big listens to.
Well, when English uses "listen to", Polish just uses "słuchać". We don't use any preposition here, "słuchać do" makes no sense.
does the verb here make mezczyzna genitive?
"słuchać" (to listen to) is simply one of those verbs that do take Genitive.
Isn't it "... słucha (kogo?) mężczyznę"?
Słuchać takes the genitive case (kogo/czego), not the accusative (kogo, co)