1. You become irrationally happy when you see your friends- Dogs love their people. If you excitedly jump up and down and lick your friends when they come through the door, you are probably a dog.

2. You sit and stay on command- This could just be a sign that you are well behaved, but chances are if someone is telling you to sit and stay while pretending to hold a treat over your head, you are probably a dog.

3. You have a tickle spot- Ever lose control of your legs when someone scratches the perfect spot on your back? You are probably a dog.

4. When the phone rings you bark at it instead of answering it- Actually, if you bark at anything it's a pretty good indication that you are probably a dog.

5. You're a good boy- Being a good boy (or girl) is the number 1 indicator that you are for sure a dog; especially if you roll over for belly rubs after you are told that you are, in fact, a good boy.