The baby most likely learned to smile in this situation based on "modeling".
<u>Explanation:</u>
A strategy applicable in certain cognitive-behavioral psychotherapy approaches in which the individual understands by replication alone, in absence of therapist's clear verbal input, and a generalized mechanism in which individuals function as models for others, demonstrating the activity to mimic others.
This method is the very widely explored in developmental psychology with respect to infants. Albert Bandura developed the fundamental of behavioral modification most famously in his simple experiment on the Bobo doll in 1961.
Within the sports framework, it is clearly articulated, especially for people with disability that Sport settings are considered to be the location in which sports programs take place, while we define sport delivery options as the formats with which the delivery is made or how sports can be taught or delivered.