Title: Robot Motion Synthesis and Control for Human-Initiated Physical Interaction Abstract: In this talk, I will review some of our work in human-initiated physical human-robot interaction. Using two example tasks including object hand-over, we will discuss the motion synthesis and control issues to realize quick and natural responses so that humans can interact seamlessly with robots. The first example is playing catch (a.k.a. rude object hand-over) where we will show how motion and reaction design improves user perception of the robot. Another example is (polite) human-to-robot object hand-over, where we apply a motion database to human motion recognition and prediction as well as robot motion synthesis.