Children with Asperger syndrome will present many facts about their subject of interest, but there will seem to be no point or conclusion.

They often do not recognize that the other person has lost interest in the topic.

Areas of interest may be quite narrow, such as an obsession with train schedules, phone books, a vacuum cleaner, or collections of objects.

Their body language may be unusual.

They may speak in a monotone, and may not respond to other people's comments or emotions.

They may not understand sarcasm or humor, or they may take a figure of speech literally.

They do not recognize the need to change the volume of their voice in different settings.

They have problems with eye contact, facial expressions, body postures, or gestures (nonverbal communication).

Are unable to respond emotionally in normal social interactions

Have difficulty showing, bringing, or pointing out objects of interest to other people

Repetitive finger flapping, twisting, or whole body movements