You should always be courteous and thing of both your and the other person's safety.

On a MUP to the beach, you cross 3 bridges with narrow paths with a chainlink fence on both sides. When having a ride come from the other direction there's enough room for both to pass. But when coming from behind I just slow down until we're off the bridge. No sense getting someone nervous passing in a narrow space. Also i trend to stay back, tailgating also makes the person nervous.

If we all understand we have to share the road, there should be no problems.