The rich girl and the waiter

"Hey!" Reen called to get a certain boy's attention. She didn't know if she would get to see much of him until they were ready to sail back after their vacation so she decided to stop by now before she would go get ready to leave with her family. 

Ning Zichu surprisingly had a free time. He wasn't rolling a cart or cleaning or even wearing a uniform. He was inside his room, staring out the window. He wore a simple shirt and trousers. She realised it was her first time seeing him wearing something else. 

When he turned around and saw her there, his eyes widened in surprise and disbelief. One, because she was making an effort to talk to him. Two, because she was right outside his room! How did she get there in the first place.