Example of Onlooker (Spectator) Play.
Watching but not engaging.
Example of Parallel Play.
Play near each other with similar toys but not cooperating or interacting.
Practice makes Progress!
References
BabyCenter
Medical Advisory Board. (2015) Toddler Milestone: Socialization. BabyCenter.com. http://www.babycenter.com/0_toddler-milestone-socialization_11742.bc
Berger, K. (2003). The Play Years:
Psychosocial Development. The Developing
Person: Through Childhood and Adolescence. (P. 305). Worth Publishers. New
York, NY.
Loehr M.D., J. & Meyers, J.
(2015). How to Encourage Social and Emotional Development: 18-24 Months. Parents.com. http://www.parents.com/toddlers-preschoolers/development/activities-for-social-development/