|In the field of Neuro-Linguistic Programming (NLP),
to "model" a person is to identify a particular skill or ability
that person has and then break such skill or ability down into small enough
component steps so that such behavior can be taught to others.
To "install" a skill or ability that has been modeled, means to teach or otherwise interact with a person so that such skill or ability becomes available to that person.
"Covertly" installing a skill or ability means doing so without the person being consciously aware you are doing so.