You will have many opportunities to avoid disclosing protected health information. Here is one simple example:
You are a hospital employee within a critical care unit. Your best friend asks you to look up her mother's testing results, since she was cared for at your facility recently. Knowing the HIPAA privacy regulation and your own departmental policies and procedures, you do not disclose the protected health information which she is requesting. You politely tell your friend that you are not allowed to give her the testing results.