Doggo's most notable feature is his inability to see stationary objects; he can only sense things that are moving, and he dislikes things and people that appear or transport themselves without physically moving. He seems to be occasionally unsure of himself and, if he sees something, checks to see if it moves again.
His hobbies include "squirrels," which refers to a common dog's habit of chasing squirrels.
It is hinted that Doggo smokes dog-treats similar to the conventional cigarette.