Examples of deficits in social communication and interaction include Deficits in social and / or emotional reciprocity (eg, failure to initiate or respond to social interactions or conversation, no sharing of emotions) Deficits in nonverbal social communication (eg, difficulty interpreting others' body language, gestures, and expressions; diminished facial expressions and gestures and / or eye contact) Deficits in developing and maintaining relationships (eg, making friends, adjusting behavior to different situations) The first manifestations noticed by parents may be delayed language development, lack of pointing at things from a distance, and lack of interest in parents or typical play.