I think Calvin is a 5w4 Sx/So and that is why is can be so much assertive, impulsive, unfocused and asking for attention by hitting on peoples. But I don't think he's an INFJ, he's very impulsive and without any constancy. Sounds P for me.Fe all the way. he's a little tyrant. there's nothing dreamy about him (which seems un-ifp child). he wants what he wants when he wants it. nor does he seem like an individual self-contained Fi type. he wants attention. he's a self-contained imagination, but he needs enthusiasm--to share enthusiasm--with hobbes. hobbes gets him going.