Asperger's Disorder is a mild sort of autism which can go completely unnoticed. A child with Asperger's will develop normally, both physically and mentally, but will have delayed social and emotional development. They are capable of having intelligent conversations and often have better than average vocabularies. They may be clumsy as children and learning physical tasks like riding a bike or making a bed may be harder than for other kids. A person with Asperger's may not make eye contact and it would be difficult to understand their feelings by their facial expressions. If you had a surprise party for an Asperger's sufferer, you may wonder after the surprise if the expression displayed happiness, surprise, fear, or plain disinterest. The interests of an Asperger's sufferer tend to be narrow and intense. They often become very skilled or knowledgeable about one thing because they get so into it that there's no time for anything else.