food court at the airport

Everyone in my family was out to do something on a Saturday evening. I was home alone and I decided to explore Changi Airport food court to sketch people. The food court on basement 2 of Terminal 3 was very crowded indeed. Some people were staring at me while I sketched. May be they were curious, may be they were not happy that I occupied a seat when there was hardly any empty seat in the food court. They were waiting for me to leave perhaps? But I still had soup and rice left on the table. Can you see them on my sketch?