OK, so the force between me and earth is G*m1*m2/r^2, and I have the same pull on earth as earth has on me. I see it in the math, BUT, it doesn't make sense to me outside of the math. Earth's gravity pulls me down to the surface...certainly I don't pull up on Earth with the same force? Why is my effect on earth negligible when compared to earth's effect on me? Looking at the equation above I would think my effect on earth is the same as earth's effect on me. Can you help me understand this? Thanks.