This is what small dogs were born for. They can be yappy, cold all the time, and downright annoying, but once you put an action figure or doll on their back, small dogs become loyal steeds. You can see it in the dog's eyes. He is already feeling stronger, both in spirit and body. I think this is the confidence boost all small dogs need so that they can calm down a little bit.
There's a sweet spot in age where you can ride a dog. Unfortunately if you're reading this you've already passed that age. You've got to be incredibly tiny and light, like two or three years old. If you've missed your chance, I'm sorry, but you can always pass the gift along. Find a child and put them on a dog's back. They'll thank you for it.