leigh the talker
I have to confince that i do the same
always talking to my pony's.
What i have learned is this. If you talk to much ( and yes i do so, because otherwise i did not have found the difference)
the verbal cues become less important then when you work in silence and use only words when it is needed.
For example you have to take care of the horses feet. You dont talk to your horse until the exact moment that he have to lift his foot for you and you say "foot" or what ever. The you get a quicker reaction then when you talk all the time to your horse and said between your babbelfish the words "foot" The reaction is much later or slower.
This works the same with dogs, the more you speak the later the reaction of the dog from what you asked.
Or even ignored by the dog.
I use several cues during riding and driving and groundwork.
The reward cue is "gooooood"
and sometimes i use a yes in a form as the human game warmer and warmer colder and colder. To stimulate the horse.
And sometimes it works sometimes not.