The state of rest or state of motion of a body can be changed by using:

No object changes its state of rest or motion on its own. 

According to the first law of motion, a body in rest or a body in motion will continue to do that unless and until an external force is applied to it. For example, a ball comes to rest because of the frictional force which opposes the motion of the ball.

Hence, the state of rest or state of motion of a body can be changed by using force.