A man is giving a direction to a woman. You can see the man's front face and the back of the woman's head in the picture.
The woman: How can I get to JK office?
The man: Take the elevator on the left.
This is confusing because we don't know if it is "his left" (elevator B) or "her left" (elevator A)?
An old man is asking you for the sweet shop as shown in the above picture.
You say to him: walk past the library, the sweet shop is on the right
"On the right" is confusing here because that is "on his right" or "on your right"?
Suppose you mean "on your right", then when the old man faces the library, the sweet shop will be on his left as shown in the picture below.
Is "on the left/right" relative to how you stand?