Question

why did Johnsy keep looking out of window

Answer 1

Because she had a funny thought that she would die with the fall of the last leaf. So she kept peeping that creeper from the window.

Answer 2

Answer:

Johnsy keep looking out of the window because she had a funny thought that she would die with the last leaf to fall.

Therefore, she was waiting for the last leaf to fall.

Hence, she was peeping that creeper from the window.

This that that she would die with the fall of the last leaf was what she was waiting for.