Chapter 6 of A night time visitor.
Kenny did prove to be a valuable help. He wasn't lieing when he said when he was good at observing people. In fact he turned out to be terrific at it. But it did tend to be kinda creepy sometimes. But it was still useful. Cartman learned plenty about Kyle even enough to know where kyle went most of the day. He decided to meet Kyle at lunch.
"Hello Kyle"
"Oh hey Cartman"
"How are you doing"
"Oh fine I guess"
"So you up to a bag of chips to go with your chocolate milk"
"Oh well yeah, I always buy a bag of chips to go with my chocolate milk. How did you know?"
"Oh lucky guess." Cartman lied because Kenny told him that info on Kyle. "So you don't mind if I paid for it."
"Um sure" Kyle said then got suspicious "as long as your not planning on pouring them on top of me"
"Well of course I'm not going to." Cartman said in a hurt voice.
"Well all right' Kyle said. So Cartman bought Kyle his daily bag of chips. After-wards Kyle actually let him sit at his empty table. It proved to be a very good lunch period.
Well there you go. I decided that lunch time would be a great time for Kyle and Cartman to bond.