Look at Me! by Begin Smart Books

From chapters.ca:
Look at Me is a combination of book and masks all in one. “Handles” at the volume’s edges make it easy for parents to hold up to their face or their child’s face, while generously sized die-cut eye-holes leave vision unhampered. The text simply says, “Look at me!” while introducing the animal and the sound it makes. Babies and toddlers will love roaring like a lion, oinking like a pig, or grrrr-ing like a bear.