Answer:
I'm often served as a "rack of ..." I'm often smoked or grilled, with bones in, and slathered in BBQ sauce.
I always run but never walk, I sometimes sing but cannot talk, No head on which a hat to place, You always look me in the face.
Up on high I wave away but not a word can I say.
You use it between your head and your toes, the more it works the thinner it grows. What is it?
I have one eye, See near and far, I hold the moments you treasure, And the things that make you weep.
I'm the source of all emotion but I'm caged in a white prison.