This article contains plot spoilers for the 2017 series of Twin Peaks.
After they left a local diner, the boy asked if Sarah had liked the song they played, and Sarah replied that she had. As they were walking, she spotted a penny lying heads-up, and said it would bring her good luck.
The boy walked her home. Sarah asked if he was still going out with Mary, and he said that was over, but he wasn't sad about it. She asked if he lived near their school, and explained that she "just knew." At her house, the boy asked if he could give her a kiss, and Sarah, awkwardly, accepted, before saying good night and going inside.