An example of a covert behavior is thinking. This is a covert behavior because it is a behavior no one but the person performing the behavior can see.
In psychology, there are two types of recognized behavior, overt and covert. While no one can see a person performing covert behavior, except for the person performing it, everyone can witness overt behavior. Examples of overt behavior include walking, eating and talking.
Today, there is a new type of therapy that fits in with covert behaviors. It's called covert conditioning or covert sensitization. It helps people with negative behaviors overcome those behaviors by associating negative consequences with their behavior. Covert positive reinforcement increases a desired behavior.