My vocal teacher notices quite often that I have a closed throat when singing. My problem is I don't have the physical awareness to know when my throat is open or closed. What are some techniques to help develop awareness of how open or closed my throat is.
One technique to relax the muscles in your throat (and open it up) is to keep your lips together and create a motorboat sound. You do this three times, each time until you run out of breath. It may sound silly but it does work. I had vocal cord surgery a couple of years ago to supplement a paralyzed vocal cord. When I had no voice I had developed a technique (unconsciously) that tightened up my throat so I could be heard -- but after the surgery I needed to stop doing this in order to not sound stressed. I went to a speech therapist and that was one of the exercises that she gave me to open up my throat, and relax my vocal cords.
I don't know how to have physical awareness, although I've tried. Using exercises like the one I mentioned should help open up your throat, if that's desired.