Take a look at a dog's paw, then add a thumb at the dewclaw and extend the "fingers" to human or near human length.
That's front.
Take a look at a human footprint, and deduct everything past the "ball" of the foot. Then lengthen what remains to twice to two and a half times its length, and widen it slightly. Add "dots" for the toeclaws, and make the center rounded, like a dog's foot pad.
That's rear.
Then go in the other direction as fast as you can.
