t do is to lightly take both of your hands and
place the fingertips on the surface
of a table in front
of you. Now, bend your second
joint on your fingers while holding the first joint (the one closest to the fingertips) flat. I have no problem doing this with my right hand, but on my left hand, unless I push down on the first joint of my middle, ring, or pinky fingers, they remain curved. My index finger works OK but is weak.