Thanks everyone for the replies! Baxter turned six months old today and probably ways around six or seven pounds. I was hoping he would calm down some... he doesn't hump at all, but he does like to mark outside, which I don't mind, because he doesn't bring it into the house. He likes to bark at other people and other dogs and gets really hyper when seeing someone new.
But it sounds like each dog is different, so hopefully everything will go okay!
