Gryffindor: names it Dog McDoggins and teaches it the weirdest tricks for example "hunt the chocolate frog"

Ravenclaw: brings it to an animal rescue shelter, just to adopt it officially and name it after a Greek goddess

Hufflepuff: says "awwwww", takes it home, cuddles it all day and names it Buttercup

Slytherin: takes it at home, acts like it's a human person to still their need of social contact and names it Oralee (=my light) because it's "the only thing that lights up their dark soul"