Because people have specifically asked for unedited training sessions that include errors, here you go!
I am working on verbal cue discrimination with absolutely no physical prompts. This is reasonably challenging but he enjoys it, and it’s a fun thing to work on in a small space or when you don’t have a lot of time.
And as an interesting side note, the heavy emphasis on verbal cues in a few sessions made it much easier to add a new verbal cue to a different thing we’ve been working on (Spin). That suggests that if you want to strengthen your dog’s verbal ability, you do not have to practice the specific cues that you want to strengthen – instead, work on the “listening” part.