Downhill lie, uphill lie, below your feet lie, above your feet lie.  How do you keep them all straight and remember how each affects your ball?  Here’s a practice drill I use with my students so they can experience how the slope of the hill affects the flight and curvature of the ball.  Find a severe downhill slope and stand at the top of the slope.  Place a ball in your hand and then roll it along the ground as if you were bowling.  Notice how low the ball traveled and how it rolled quite far with little effort. It also tended to roll slightly to the right toward the bottom of the slope. Now walk to the bottom of the slope and roll the ball in the opposite direction, creating a severe uphill lie. What did you see?  The opposite affect of the severe downhill lie: the ball traveled higher and a more lofted motion was needed to make the ball travel up the hill.  For the sidehill lies, you will need a ball and your putter. Find a hill where the ball is above your feet and make your putting stroke.  Notice how the ball broke from right to left, the same as it would do if you were playing a big break on the putting green.  If the ball is below your feet and you make your putting stroke, notice how the ball travels from left to right.