Final answer:
Puppet Warp mode allows you to manipulate the shape and position of specific parts of an image by creating control points and dragging them to desired positions.
Step-by-step explanation:
In Puppet Warp mode, the most useful task is to manipulate the shape and position of specific parts of an image by creating control points and then dragging them to desired positions. This allows you to make precise adjustments to the image, such as reshaping an object or adjusting body proportions. For example, you can use Puppet Warp mode to straighten the leaning Tower of Pisa in a photo or change the position of a person's arm in a portrait. Overall, Puppet Warp mode gives you more control over the transformation of an image and flexibility in adjusting its elements.