happy feet

out of the blue,
my foot, as if detached
from me
begins to tap
against the floor,
as if it wants
to dance.
all it takes is for me
to hear a happy
tune on the radio
and off it goes,
sliding and twisting,
tapping
as the rest of me
sits still.
I watch it and smile,
I like the way it keeps
the beat,
has a life of its own,
somehow.