How'd I do that? Well... if you are lucky, you might come upon some footprints already made in the sand (or the dirt, or the snow). For this example photo, I stepped back after my crew had already walked around and then grabbed my shot. If you are alone, you can take some steps and then back out of those same steps, carefully lining your foot up to them. Then go ahead and snap the shot. If you live near a beach or sandy area, this will be easy.  If you have early snow, this will be easy.  If you don't have those, you can get creative.  Throw some flour out on the walkway and walk through it. Find a puddle to walk out of leaving a watery footprint. You could use washable paint on an old sheet. Step in some mud. Arrange or disturb fallen leaves so there is an obvious path. Get as creative as you like and interpret the prompt in any way you like!