Animals cannot tell us what they feel, but their behaviour communicates how they feel in certain situations.
Where a dog may be showing aggression for example, this is the outward behaviour we see, however the underlying emotion is likely to be fear or anxiety. By doing our best to establish how the animal feels, reveals what is driving the particular behaviour and how best to work with the animal.
By having an awareness of the subtle behaviours your dog uses to communicate i.e. the ‘whispers’, there is no need for your dog to ‘shout’.