Well, nerve impulses are transferred to areas of high sensory on your hand, defining shape.. ah yes, the shape of the hand. These impulses come from your brain. They tell you whether the person has disgusting scaly, sweaty, dishpan hands--or soft, gentle, coated-with-lotion hands. Hopefully, these nerves can also transfer output allowing you to squeeze the hand of holding harder, scratch their palm with your finger, or perhaps even let go. It's all up to you.

Unless, of course, you were talking about emotional feelings, but who would really know about that?