Dogs do not have problems expressing affection in public.
Dogs miss you when youre gone.
Dogs feel guilty when theyve done something wrong.
Dogs admit when theyre jealous.
Dogs are very direct about wanting to go out.
Dogs do not play games with you, except fetch (and they never laugh at how you throw).
You can train a dog.
Dogs are easy to buy for.
The worst social disease you can get from dogs is fleas. (OK, really, the worst disease you can get from them is rabies, but theres a vaccine for it and you can kill the one that gives it to you).
Dogs understand what no means.
Dogs mean it when they kiss you.