These are two of the paintings on the wall of the Fertile Grounds Cafe on Shattuck Ave. in Berkeley. They are by artist Tom Clarke, in an exhibit titled Games People Play.
The artist writes:
The ball is inanimate.
The players animate the ball.
The players are inanimate.
They animate themselves.
At moments of contact they animate each other.
The ball hangs before or between them in suspended animation,
its movement both product and cause of their movements,
defining the space in which they move.
Earlier that day I discovered this intricately decorated old house half hidden by bouganvillea in an industrial neighborhood in San Francisco: