This is a key concept of this theory is we learn through the observation of others. A theory that evolved from behaviourism though now has many concepts from the cognitivist camp included. It has been re-named by some to social-cognitive learning.
There are three variables to the social learning theory; environment, person and behaviour which influence each other.
Close relation to Vygotsky’s Social Development Theory and Lave’s Situated Learning Theory.
Advertisements and TV commercials are good examples of social learning.
Useful website http://www.texascollaborative.org/Learning_Theory.htm and http://www.instructionaldesign.org/theories/index.html