Here is my low poly way: On the lower leg, loop cut ankle line. Extrude foot shape from front polygon, 2 steps. Add subsurface modifier and you get the base shape. Extrude sole geometry from bottom and add some loop cut to refine the shape. - See this image on Photobucket.
Building the Basic Hand Shape Figure shows the modeling process for a hand. You can model it wherever you want and move and scale it later according to . - Selection from Learning Blender: A Hands-On Guide to Creating Animated Characters [Book]