We might miss the sign or we may be unable to read the expression, but it is almost a contradiction in terms to say that a dog feels something but does not show it. What a dog feels, a dog shows, and, conversely, what a dog shows, a dog actually does feel.
Dogs Never Lie About Love: Why Your Dog Will Always Love You More Than Anyone Else (ed. Random House, 2012) - ISBN: 9781409002482