It's important to recognize feelings. Teach your child that he can tell how other people are feeling by looking at the expressions on their faces. Halloween is a great opportunity to look around and see faces that are funny, scary, happy and sad. Your child can test out how well he understands facial features while trying to illustrate an emotion on a pumpkin using only paint! After he decides what emotion he wants his pumpkin to convey, he should paint it onto the pumpkin. See if you can guess what emotion he's trying to communicate.
Ask your child to look in the mirror and tell him to mimic what various emotions look like. Can he make a happy face? Scary face? Sad face? Ask him to describe what features have to change in order to make those faces.
Encourage him to think about what emotion he wants to give his pumpkin. Tell him to keep it a secret for now.
Have him paint his pumpkin using the tempera paint, trying to portray the secret emotion. Allow the pumpkin to dry.
Study his finished pumpkin and try guessing what emotion he gave his pumpkin. Did he successfully convey the expression?