Taken directly from video description
Jessi does a short example of how to get your dog familiar and comfortable clipping their nails.
This video is not intended to teach you how to train your dog, but is intended to help you desensitize them to the process of having their foot held and having the nail clippers present. If your dog has anxiety around the clippers or with their foot held, repeat the first part of the process until they are comfortable having their foot touched, held, and manipulate in the presence of the clippers. Never force your dog to have their foot held or nails clipped, go slowly and have many sessions until they are calm during the process. Remember: give lots of calm massages and treats!