Observing
Kyle took Xing Han's hand in his own, playing with it and seemingly admiring Xing Han's hands with his head down. In reality, he was watching the couple and reporting to Xing Han what they were talking about.
Well, one side of the conversation at least.
Only Cornelius was facing them while the lady was not. The table that Xing Han had chosen was the last one in the carriage, so the wall was behind Kyle and Xing Han.
This way, they could be assured that the targets, if they came, would be in front of them. Either to their left or directly in front. In this case, they were directly in front.
Kyle didn't quite like the fact that Cornelius seemed to be looking at them a bit so Kyle smiled sweetly at Xing Han as he took the hand he had been holding and put it on the right boob, saying, "This one is feeling lonely."
The waiter that just came practically dropped the starters on their table and dashed off, cursing his luck for being on shift right now.