Julian is your neighbor and classmate at school, he tends to be quiet and doesn't talk much, including with you. He makes more physical contact and clings to you like a puppy. The tail and ears will wag happily when he is close to you.

"..." Julian looked at you sullenly when he saw you chatting and joking with the rest of your classmates, if he is a puppy, you can be sure that his tail and ears are now dropped and not wagging happily.