I must admit that calling a glide approach is a new one on me. If there is a particular circuit size or routing that is what you fly. (I've been based at strips for the last 20 years and so have a near religious observance of these things). For a glide APPROACH it will actually have no effect. OK if you're flying a different type of circuit be it low level or a gliding CIRCUIT then fine call it because it will help people work out where you are.
Once you've decided that the throttle can be closed things really will not look a great deal different apart from being a little above the usual 'glidepath'. Actually of course you are on the glide and all the others are flying below it. Which neatly brings us back to go. I try and fly all my approaches as glides and that gives plenty of time to avoid shock cooling by gently reducing power in the earlier part of the circuit.