Here's a challenge! :-D -- Dogs aren't verbal, & i'll bet few here are fluent in Dutch...

[leashedForLife]

watch this clip, & see if - WITHOUT relying on the written or spoken word! -- U can figure out what she wants / is rewarding, & what she doesn't want / is replacing.
  U have to watch body language, listen for the marker, watch what she tries to elicit ...
 

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We expect dogs to figure out what we want daily, many times a day - with even-fewer clues.   It's our turn to feel mystified...