Find a cubicle with a glory hole, you can then view what they are doing and you maybe lucky, they might put their cock through it or alternatively put yours through. So horny when cum fills your mouth:)
Once you've done it there's no going back. The majority of straight men only think their straight. If they can't see who is doing it they would never know. Having sucked off many men in various locations the majority have been in straight relationships and their the ones that can't get enough of it.