FOOT BOUNCE
One foot repeatedly bounces, taps, or jiggles, often when the leg is crossed over the other knee.
Discharged nervous energy. Anxiety, anticipation, or impatience.
Some people are habitual bouncers — establish baseline. A bounce that begins suddenly is meaningful; one that has been present from the start is less so. The change in tempo is more important than the presence of the bounce.
A response to music or a sound.
