The young actress behind the mask is Disney Channel star, G Hannelius, from the Emmy-nominated comedy, "Dog with a Blog."

During a visit to Children’s Hospital Los Angeles, G gave a “nail party” for patient, Jessica Sanchez, met Jessica's family and offered Jessica a few pointers on how to polish polka dots and glittery accents!

Jessica wanted to know how G manages to perform her lines without laughing when she’s surrounded by such a funny cast and actors doing wacky stunts!

Check out the video to hear G’s answers!