A little bit of tickling: the Girl loves to be tickled (within reason, for she is very ticklish), but she’s only recently learned the difference between tickling and gouging. As far as the ticklishness goes, though, she clearly gets it from her mother.
A little bit of chess: the Girl is learning how to play, and the Boy is fascinated with the pieces.
And a little growing: another moment where we can see just a glimpse of what L might look like in five or so years.