[John Pancoast]

Also, think simply if you will to give you an initial idea. I.e., your heading of 114. You know the four cardinal directions; 360 is always straight ahead, 090 is always to your right, 180 is always straight behind, and 270 is always to your left.
Then you can easily visualize the general area a target is via it's heading.

Thanks for answering derstrosstrupp !