Which words best describe the narrator's voice in this passage?

It's clear that this really pretty sincere yellow
Dean at left is Admissions. And surely the
little aviarian figure at right is Athletics, then,
because the facial creases of the shaggy
middle Dean are now pursed in a kind of
distanced affront, an I'm-eating-something-
that-really-makes-me-appreciate-the
presence-of-whatever-I'm-drinking-< br /> along-with-it look that spells professionally
Academic reservations.
- Infinite Jest,
David Foster Wallace

imaginative and observant

What effects does naming the deans only by their titles have?
it distances the narrator and makes the deans seem less like people