In the context of operant conditioning, refers to rewarding successive approximations of a desired behavior.

In the context of operant conditioning, shaping refers to rewarding succesive approximations of a desired behavior.

Explanation:

In operant conditioning, shaping is an approach or method used to modify behavior and achieve a desired conduct. It was first used by Skinner and now it is a method proven to be very usefull when training animals.

In shaping, not only the desired behavior is rewarded, like it is commonly known in operant conditioning, but every behavior that is an approximation of that desired behavior. When rewarding these successive approximations, they are gradually shaped to the performance of the targeted behavior.  

cause you are attracted to the features of girls or if you are a boy you are attracted to the features of a boy.

what is the other part to the question