They often have their hackles up, stare menacingly, and emit a low growl with lips pursed and teeth exposed. They will place a paw on the shoulder of another dog, mount people's legs, and push children aside when going through a door. Dominant aggressive dogs are demanding of attention. They demand to go outside, demand excessive affection, are possessive of their sleeping areas, and stop eating when approached. Many of these dogs will not obey commands, especially commands that require submission, such as down or stay.
Dominant males mark everything, even in the house, even if their bladders are empty.
They may growl when disturbed from rest or sleep, especially from a favorite spot such as the couch or the bed. The dog may choose to use its teeth to prevent you from rolling it over. The dog may growl first, but there won't be the curling of the lip associated with defensive aggression. Reaching for the dog's collar or reaching out over its head to pet it can be interpreted as a challenge. Physical restraint, even when friendly, like hugging, may also cause the dog to respond aggressively, as may direct stares or the application of punishment.