"Baby Faces" by Roberta Grobel Intrater
Identify the emotions happy, sad, and angry/mad
"Can you point to the happy face?" etc
First, read through the book and verbally label all of the faces, and talk about each face.
Second, show two faces and have him point to the "happy face", and etc.
Third, show him one face, and ask him to verbally say the emotion on that face.