Cavalier King Charles Spaniel puppies are an eager breed and very affectionate. These pups love to wag their tails and are very lively. They have good comprehension skills so they can be easily trained and they do best when given obedience training that can be considered gentle. Cavalier pups love being around people and need companionship to stay happy. These little puppies love to run around and have strong hunting instincts so it is best to keep it on a leash when walking it outside. Cavalier King Charles Spaniel puppies do best with older children, all in all these dogs will make a great companion to just about anyone.