He told her his one knock-knock joke. It has now morphed into:
You: "Who's there?"
James: "Big grey sum!"
You: "Big grey sum who?"
"Once upon a time, there was a princess named Anna. She went to school. And then, she went to hiiiiiide (runs into bedroom with phone, laughing)!" Long pause. "Uhhhhhhm. And she lived happily ever after. The End."
Such a little thing. Such a big breakthrough, that he can do even this much this now.
It's totally made my day.
Looking forward to the next chapter.