story: Millie enjoyed playing peek-a-boo. One day, she saw a little boy in the car next to her. She started playing peek-a-boo with him. He waved, and started playing peek-a-boo too! Millie's excitement about her new friend lasted until nap time.
 selected sentence: He waved, and started playing peek-a-boo too!
The baby want(s) friendship >Motivates> The baby waves next to Millie