There are several signs your Yorkie is happy. If your dog experiences sudden bursts of energy, called "zoomies," that's a good sign! She might run around the house very quickly and even make a funny growling noise for about a minute or so. It's just excitement - don't try to stop her or reprimand her. Zoomies mean she's happy!
If your pet cuddles up to you and takes naps on you or near you, that's also a good sign. Close to a dog is similar to a hug!
If your Yorkie puts their paws on you, it's their way of saying "I love you!" They can't use their words!
If your Yorkie looks you straight in the eyes (while blinking), that's also a good sign she's happy.