Final answer:
In the reference frame of the bicyclist passing by to your right, you would be moving to the left, demonstrating the concept of relative motion in physics.
Step-by-step explanation:
When considering the scenario where a bicyclist is moving past you while you are standing on a sidewalk and facing the road, it all comes down to frames of reference in physics. If the bicyclist is passing by toward your right, in the reference frame of the bicyclist, you would appear to be moving to the left. This is because in the bicyclist's frame of reference, they would be considered stationary and everything else would be moving relative to them. This concept is a fundamental aspect of relative motion in physics.