Years ago, these booths would basically have two quarter slots that operated one of two 8mm movie projectors, which continuously looped. The slot you dropped your quarter in would control which movie played ("A" or "B"). After a minute or two the movie would stop and more money would be required to start where it left off.
Almost all booths have a light inside/overhead that turns off when the movie starts and then turns back on when your time expires. And, most booths provide an "occupied" light outside the booth. It will light when the movie is playing to let others know that the booth is in use as well as letting clerks know if someone is occupying a booth, watching or not watching a video (a big "no-no" is to be in a booth and not watching a movie - after all, that's why you go into a booth). More recently, video booths have been upgraded with two or more sets of televisions to watch the main attraction on one, while watching previews of other selections on the other. Sometimes, these previews will appear in split-screen mode, allowing you to see up to four or more other channels, while watching the main selection in front of you.
With multiple monitors, you'll find that one is usually at eye-level (when you are standing), and the other is above that screen (or next to it in wide booths). The one at eye level displays the video you have selected and provides the sound. The other cycles through available previews and allows you to select them through more advanced control panels such as providing four or more buttons on the control panel. So, it's easy to select any one of the previews and watch it on the main screen... But, if you're in a booth with a gloryhole, the video will quickly become secondary to the pleasure you're receiving (or giving) while it rolls! [ at least in our fantasy ]
The bottom line of video booths is to provide adult XXX entertainment and to get you off (go ahead, have an orgasm!). Gloryholes generally lead to other possibilities. However, some customers go simply to watch a movie and maybe masturbate alone. These people usually select a booth without a gloryhole in order to enjoy the privacy. Please, leave them alone and let them have their fun.
Once you are comfortable with the video booth, the controls, how you pay for time, selecting a video, etc., you can then concentrate on the gloryhole. Remember, never hang out in a video booth when your time has expired. You can expect a clerk to knock on your door or yell or just ask you to leave if you are not spending money to keep that movie playing. After all, these places won't stay in business if you don't spend money. So, bring some cash with you and if you run out
Leave. Otherwise, keep dropping that cash!
Now, what about that hole in the wall?
If you want to please your neighbor, first see if he's interested. Of course, there has to be someone on the other side of the wall! But, if there is and you look through the hole and see him touching himself at all, you can let him know you're interested. A few ways to do this are to squat down and play with yourself so that if he looks down and sees you he will know you are excited as you look at him. Or, you could put your finger near the gloryhole, or rub around the outside of the hole, in clear view, but not protruding into the next booth. If the other person is interested, that should be enough! You will soon have a cock near or through the hole for you to enjoy. Otherwise, he may just leave. Do NOT be pushy. Some people are in booths with gloryholes by accident and may not be into it. And, others may just not be interested at the moment. The worst thing you can do is get too pushy (or not spend any money as mentioned earlier)...
Being pushy gives everyone a very bad feel for these places and causes some people to leave and never return. Finally, some people just like to watch through the gloryhole. They'll watch you masturbate or you can watch them: No touching! Again, just enjoy what you get. If that's not what you want, find another booth. But, do not set expectations.
It seems that guys who want someone to please them will stand in their booth and openly rub their crotch (visible by looking through the gloryhole). Some even pull it out and stroke. This generally gives the person in the next booth a very good idea of what's "next door" from a distance... As for the person watching, perhaps he or she only likes huge cocks or they want a smaller one. Maybe they like shaved cocks or uncircumcised cock, etc. This allows them to do a little "window shopping."
So, if you see a finger near the hole or rubbing around the edge, it is a sure sign that you are wanted. Sometimes, you may just see an open mouth, ready for you!
Wow, imagine standing in some booth, looking down at a hole in the wall, and seeing a hot pair of lips, maybe coated in sexy red lipstick, parted just enough to give the hint of desire. What would you do? Some guys might just get very close to the hole, without pushing through. But, at that point, they might see a hand come through, grab on, and/or pull them through. Or, they might see a tongue stick out, waiting to feel them. It's about then that something just might happen... An anonymous blowjob?
Are you wondering if there is more to gloryholes than just blowjobs or handjobs? Us too... Maybe some people enjoy intercourse through those holes. I bet if you peeked through and saw your neighbor, bent over, putting an ass or pussy near the gloryhole, it may mean just that... "give it to me?" Who knows... Don't assume anything... maybe the person wants to be eaten (or rimmed).
Keep in mind that this is through a hole and not the easiest position for most types of sex. With a small cock, it just isn't going to happen. To get through the hole and into something else requires some length... 5" or less isn't going to happen, is it?
Remember: All of this is fantasy and, as we've all heard elsewhere, "We're professionals... Don't try this at home." Keep yourself out of harmful situations and know your local laws! Always play it safe and wear a condom. Don't be pushy and treat others as you would like them to treat you! But, most of all... Enjoy!