Yes, dogs can do this from time to time. It is extremely disgusting, but it is not that uncommon. When a dog starts eating its own or other dogs’ feces (also called coprophagia), it usually comes down to one of two things; either it is a behavior that can be corrected through training, or it is a sign of malnutrition.
The best thing to do is to take your dog to the vet if it starts doing this too often. If your vet rules out any nutrient deficiency or medical reason, then it’s time to go to a trainer to help your dog break the habit.
When your pup licks you, it is usually to say "I love you," or to seek out your attention. Also, you can taste pretty good; don't forget we have nutrients and minerals in our skin, and plenty of sodium to boot. We're basically a salty treat to dogs.
If the licking becomes too intense, training your dog to not do this can be done with basic training. The best way to go about this is to ignore your dog when it licks you and reward it with a treat when he stops. Oh and that myth about dogs' saliva being cleaner than humans'? Just a myth.
Chasing Their Tail
Tail-chasing, in most cases, is simply a sign of playfulness, but keep an eye out if your dog starts doing this excessively. It might mean there's a health or behavioral issue behind it; for example, if your dog chews at his tail when he catches it, then he might have skin allergies or anal glands that need to be emptied at the vet.
If your dog starts chasing its tail all the time and in an obsessive manner, it may be a sign of OCD. Yes, this affects animals, too. You're better off checking with your vet, just to be on the safe side.
While you may think your dog is trying to yodel, this may be your dog trying to communicate with you. In fact, many owners swear that their dogs can speak to them, even if there is no substantial evidence to back this up.
A writer for an animal journal comments about his dog's yowling: “Our German Shepherd rescue, the sweetest dog we have ever owned (unless you happen to be a cat), is 9. She 'talks' about everything! Grumbles, over being denied a cat lunch, has 5-minute conversations over going out for a walk, exchanges pleasantries (you would swear) over how happy she is to see someone.”
Hugging With Their Eyes
If your dog gives you puppy eyes, then this is a really good sign. Most dog owners think that puppy eyes are a sign that their dog is trying to get their attention by being cute. But actually, puppy eyes are a show of their affection for you and their way of hugging you.
This adorable look of innocence is a sign that they adore you and are looking for you to hug or kiss them. If your dog looks straight into your eyes and stares at you, you should be very happy because it shows that your dog is crazy about you!