What is often harder for parents is when their child doesn"t want to engage in affectionate physical contact or hugging, due to differences in sensory processing and social communication. Parents trying to play some kind of simple give-and-take game may find children with autism are not interested, and parents may find this hard. "It"s that turn taking, that reciprocation, a sort of copying [that children with autism may struggle with]," says Frith. "The easy understanding of what another person does."