Answer:
As a driver you always have to make sure that the other driver can see you and you can also see them , otherwise if the other driver doesn't see you , you can never predict what they would do next because they can't see you. You may try to move to the other lane and he may swerve in that exactly direction because she or he can't see you. It is important to stay visible and pass only when the other driver is aware of your intention.