Fisher F2 and headphones..

[MetalheadHorror]

I am looking for advice on headphone usage and am starting to think my method is faulty. I usually put my headphones around my neck just hanging there so I can make out what kinda tone my target is, still hear whats going on around me, and not be bothering people close by with F2 loud speaker. Some advice that was given to me (DIGGER27,Patton) was listen to the shape and volume of the tones and you will be able to tell more about the target. I am starting to think maybe I should put the headphones on my ears where they belong to make out those subtle sounds. Also are there any headphones that work well with F2 in particular?