Look out the window. That's my message to new third mates. More then that, gain experience in the interpretation of what you are seeing.
I honestly don't understand why almost all new third mates have such a strong preference for using the radar when the situation can be more easily understood visually.
In aviation new pilots must first learn to fly a plane using visual flight rules and then later gaining an instrument rating. New mates on the other hand seem bound and determined to navigate entirely by instruments. My message to them is the same one I gave the mate that night in Alaska - Look out the [expletive deleted] window.