They can discuss stories intelligently.
Children in kindergarten love stories, and they can stay interested for up to 15 or 20 minutes at a time. Not only that, but a kindergartener can discuss concepts like what character she likes best, how the characters solved a problem and what she would have done if she was in their position.
What you should do: Discuss books you’ve read together. Read different genres. Not only does this build a love of reading, but it can also plant seeds of social skills your child will use in the future, like conflict resolution and problem solving.