Duke's tail wag-wag-wags. 'He's telling us thank you for walking him,' says Mummy. Did you know that children as young as one or two are capable of complex feelings? A Thank You Walk helps develop gratitude in children, and is part of Bright Start, a new series of board books that nurtures emotional intelligence. With parental guidance from a child psychologist included, Bright Start introduces and nurtures the emotional qualities that children need to develop and grow.