My adventures at glory holes all took place in the 80's. That was the era of movies in Adult Bookstores – and glory holes in every store. It was before the AIDs/HIV era, and so there wasn't the health code issues that had them closed down. There may still be ABS's that have them but I haven't found any in a long time. Of course, I haven't been in one in a long time, either.
My favorite was a two floor bookstore in Toms River, New Jersey. Located in a strip mall, the upstairs was the bookstore with the magazines, the videos for sale and the paraphernalia. The movie booths were downstairs. I suppose if I worked there, I would have been a typical customer – coming in the door, giving a nod to the guy (sometimes the girl) behind the counter, then browsing through the paperbacks, then moving to the magazines and trying to give them all equal time. Trying not to be obvious that what really attracted me were the gay men's magazines. I imagine I was pretty obvious to them in my attempt to be casually interested. Never the less, nothing was said at any time, and so I would spend 10 minutes or so on the first floor before wandering over to the listing of what was being shown.
This was the time when every booth was beginning to have multiple channels – so no longer did I have to be concerned that I would be seen going into one featuring man-on-man action. I was straight as far as everyone in my life knew, and my walks on the bi side were a closely kept secret and an occasional source of concern. It was about this time that I figured out I had better not park my car where it was easily seen – things like that.
Anyway, once I had my 10$ worth of quarters, I descended the narrow stairway. The first time I was there, the door to every booth was ajar, so I took advantage of the opportunity to see which – if any – had those holes cut in the wall. As it happened, when I first started there, they all did! So I simply went into one, put my money on the bench and got comfortable. I put in money and turned down the sound so no one could tell what I was watching (seems rather silly now, of course) and then I put in 2$ worth of quarters and started cycling through the vids. I had just found one that instantly had me hard – 3 black dudes with huge cocks and a cute white girl on her knees – when I heard the door in the next booth open and close.
I waited to hear the right sounds – the lock being thrown and quarters dropping into the machine – before I bent over and looked through the hole. I knew some part of me would be visible, but figured it wouldn't be enough to identify me. And I watched the dude in the booth slowly unzip his jeans and then drop them. The outline in his briefs was a hard, thick cock that was pulsing and twitching. At that point I put my hand in front of the hole and did that universal beckoning movement. It took a moment, but then turned and moved up to the hold.