the difference

"I just got here." Bai Jie'er felt relieved. It seemed that the immortal master didn't see her. She was really scared. She couldn't help but scolded, "Master Li, why don't you come in? What are you doing standing on the roof?"
"Well, actually I have a hobby, which is standing on the roof to admire the moon. Can you imagine how fresh the air is on the roof, and how bright the moonlight is? Admiring the bright moon and getting your hands wet is really a great pleasure in life."
Your hobby is...