What are the signs when dogs get jealous? How to deal with dogs getting jealous?

Many dogs like to get jealous. Some say dogs are extremely loyal and stubborn with their owners. If they see the owner showing a lot of care and closeness to other companions, the dog will get jealous. However, what are the signs when a dog gets jealous, and how should we deal with these behaviors?
Through observation and study of pet dogs, it is found that the signs of dogs getting jealous are numerous. For example, when the owner is very close to a certain dog, pet, or person, the jealous dog will insert its body between the owner and that being, actively lick the owner, or paw at the owner’s leg to ask for hugs, etc. In short, they try hard to get the owner’s attention and create difficulties for the owner’s closeness with another being.
As owners facing the dog’s jealousy, on one hand, they can let the dog understand that even though you care about other companions, you have not ignored its existence and still care about it very much. On the other hand, it is also necessary to try training the dog’s magnanimity so that it can interact normally with other dogs and remain calm and stable when facing your behavior. (Source: PetsZone)